PES INSTITUTE OF TECHNOLOGY BANGALORE SOUTH CAMPUS Hosur Road, (1K.M. Before Electronic City), Bangalore DEPARTMENT OF MECHANICAL ENGINEERING
|
|
- Loraine Kelley
- 6 years ago
- Views:
Transcription
1 PES INSTITUTE OF TECHNOLOGY BANGALORE SOUTH CAMPUS Hosur Road, (1K.M. Before Electronic City), Bangalore DEPARTMENT OF MECHANICAL ENGINEERING SCHEME AND SOLUTION - I ST INTERNAL TEST Subject : RAPID PROTOTYPING Semester: VIII Sub. Code : 10ME837 Section: A&B Name of the faculty : ASHUTOSH KHANNA Q.No Question Marks 1 Why there is need for time compression in product development? 10 Write brief history of RP Technology. Sol Any new product development has to go through various design and testing phases so that it can become 100% successful in market and remain competitive and sustainable. This is time consuming and hence need is felt in time compression in product development, which is very well done by using Rapid prototyping techniques. The Time Compression in Product is well shown below: 2 Mark s TIME COMPRESSION 5 Marks In time compression in Product development Conceptual Design, Detail design, Engineering Analysis Tooling, Production stages has been modified with use of Rapid Prototyping and Direct Digital Manufacturing Techniques thus substantially compressing the product development time, and thus making companies product quality and competitive in today s ever changing business environment. Brief history of RP Technology 1986: First Patent on Stereo lithography By Charles Hull, Founder of STRATASYS. 1989: Patent on Selective Laser Sintering By Carl Deckard 1992: Fused Deposition Modelling Patent Acquired By STRATYSYS. 2004: Dr Boyers Introduced Open Source REPRAP 2008: Direct Digital Manufacturing and 3D Printing 3 Marks
2 Que No 2 Question (10 Marks) Write classification of RP Techniques? Explain with help of Flow chart CAD data flow in a RP System. In all commercial RP processes, the part is fabricated by deposition of layers contoured in a (x-y) plane two dimensionally. The third dimension (z) results from single layers being stacked up on top of each other, but not as a continuous z-coordinate. Therefore, the prototypes are very exact on the x-y plane but have stair-stepping effect in z-direction. If model is deposited with very fine layers, i.e., smaller z-stepping, model looks like original. One of the basic way of classifying a RP Technology is based on use of material or type of process, which results in creating a 3D Component, following is simple classification based on Process RAPID PROTOTYPING Flow chart CAD data flow in a RP System
3 Question 3 (10 Marks) Explain a basic Stereo lithography System? Write various process parameters associated with a SLA System. Give Example of Commonly made Components/Prototypes created by a SLA System. A Basic Stereo lithography System is Composed of 1. Solid State Laser Device 2. A Scanner System 3. An Elevator Platform 4. A Liquid Resin VAT. 5. Computer Hardware And Software A laser beam is directed in the X-Y axes across the surface of the resin according to the 3D data supplied to the machine (the.stl file), whereby the resin hardens precisely where the laser impinges the surface and local solidification in X Y Direction occurs forming a layer of thickness as small as.006 inches. Once the layer is completed, the computer controlled sensor actuated platform within the vat drops down by a fraction (in the Z axis) and the subsequent layer is traced out by the laser. This continues until the entire object is completed and the platform can be raised out of the vat for removal. After each layer is built the Prototype is ready for post-processing and excess resin is removed using a solvent such as alcohol and cured using a uv light source. Various Process parameters for a SLA Process are 1. Laser type, wavelength, 2. power 3. Layer thickness 4. Drawing speed 5. Max part weight 6. Elevator resolution & 7. repeatability 8. Vat capacity 9. Max build envelop 10. Operating system Commonly made Components are Prototypes for concept models, Form-fit for assembly tests and process planning, Models for investment casting, replacement of the wax pattern Patterns for metal spraying, epoxy molding and other soft tooling, and Micro parts.
4 Ques No 4 Question What is selective laser sintering? Write and explain various component of SLS Equipment? How its different than Stereo lithography System. Laser sintering is a laser based 3D printing process that works with powdered materials. The laser is traced across a powder bed of tightly compacted powdered material, according to the 3D data fed to the machine, in the X-Y axes. As the laser interacts with the surface of the powdered material it sinters, or fuses, the particles to each other forming a solid. As each layer is completed the powder bed drops incrementally and a roller smoothes the powder over the surface of the bed prior to the next pass of the laser for the subsequent layer to be formed and fused with the previous layer, a typical SLS System is Composed of CO2 Laser Device, A Build Chamber, Powder Level Roller, Powder feed, Computer Interface, Sensors and actuators. Before starting CO2 laser scanning for sintering of a slice the temperature of the entire bed is raised just below its melting point by infrared heating in order to minimize thermal distortion (curling) and facilitate fusion to the previous layer Marks (10) Selective laser sintering (SLS) gives the capability of flexible snaps and living hinges as well as high stress and heat tolerance, Wide variety of materials such as flexible and rigid plastics, electrometric materials, fully dense metals and casting patterns Unlike Stereo lithography supports not needed and there is reduced distortion from stresses In SLA Build strategies have been developed to increase build speed and to decrease amount of resin by depositing the parts with a higher proportion of hollow volume. These strategies are devised as these models are used for making cavities for precision castings. Here walls are designed hollow connected by rod-type bridging elements and skin is introduced that close the model at the top and the bottom. These models require openings to drain out uncured resin.
5 Que 5 What is Fused Deposition Modelling? Explain the role of Extruder is quality of the component created using FDM process. What are the various process parameters in FDM System In Fused Deposition Modelling (FDM) process a movable (x-y movement) nozzle on to a Substrate deposits thread of molten polymeric material. The build material is heated slightly above (approximately 0.5 C) its melting temperature so that it solidifies within a very short time (approximately 0.1 s) after extrusion and cold-welds to the previous layer as shown in figure below: 10 Marks The quality of Extrusion can be understood from the fact that mathematical or physics-based understanding of extrusion processes can quickly become complex, since it can involve many nonlinear terms like nozzle design, material, discharge through nozzle etc. The basic science involves extrusion of highly viscous materials through a nozzle. It is reasonable to assume that the material flows as a Newtonian fluid in most cases. Hence main drawback results 1. Accuracy which is relatively low and further it is 2. Its difficult to build parts with complicated details 3. Poor strength in vertical direction and 4. Slow for building mass parts. 5. Further steady nozzle movement and material extrusion rates, addition of support structures for overhanging features and speed of the nozzle head, which affects the slice thickness. Various Process parameters and their values are as follows a) Liquefier temperature: b) Chamber temperature c) Stand off distance d) Filament feed rate e) Nozzle diameter (0.012 and inch) f) Deposition speed g) Material type (The build and support materials come in filament form, about inches in diameter and rolled up on spools) i) Fill spacing /Build envelop (10" x 10" X 10" range, whereas the 8000 and the Quantum can build 24" x 20" x 24" parts)
6 Que 6 What are the various process parameters of a Selective Laser Sintering Equipment? What are the advantages of SLS Technique of 3D Prototyping? In a SLS System a laser beam is traced over the surface of a tightly compacted powder made of thermoplastic material. The powder is spread by a roller over the surface of a build cylinder. A piston moves down one object layer thickness to accommodate the layer of powder. The power supply system is similar in function to the build cylinder. It also comprises a cylinder and piston. In this case the piston moves upward incrementally to supply powder for the process. SLS system contains the following hardware components: 1. Build chamber dimensions (381x330x457mm) 2. Process station (2100x1300x1900mm) 3. Computer cabinet (600x600x1828mm) 4. Chiller (500x800x900mm) 5. The software that comes with the Vanguard TM si2tm SLS System includes the Windows 2000 operating system and other proprietary application software such as the slicing module, automatic part distribution module, and part modification application software. Process parameters can be lumped into four categories: (1) laser-related parameters (laser power, spot size, pulse duration, pulse frequency, etc.) (2) scan-related parameters (scan speed, scan spacing, and scan pattern) (3) powder-related parameters (particle shape, size and distribution, powder bed density, layer thickness, material properties, etc.) (4) temperature-related parameters (powder bed temperature, powder feeder temperature, temperature uniformity, etc.) Various Advantages of SLS RP Techniques are as Follows Parts and/or assemblies that move and work that have a good surface finish and feature detail Selective laser sintering (SLS) gives the capability of flexible snaps and living hinges as well as high stress and heat tolerance Wide variety of materials such as flexible and rigid plastics, electrometric materials, fully dense metals and casting patterns inexpensive materials safe materials supports not needed reduced distortion from stresses produce parts simultaneously
7 Que 7 Compare the FDM, SLS and SLA RP Technique based on accuracy, surface finish, materials, build time, cost etc. 10 Marks RP is a group of technologies which allow rapid freeform fabrication of 3D objects of limitless geometric complexity through a layered manufacturing process. RP technology has potential to reduce time required from conception to market up to percent (Chua and Leong, 2000) as shown in figure 10. It has abilities of enhancing and improving product development while at the same time reducing costs due to major breakthrough in manufacturing (Chua and Leong, 2000). Although poor surface finish, limited strength and accuracy are the limitations of RP models, it can deposit a part of any degree of complexity theoretically. Therefore, RP technologies are successfully used by various industries like aerospace, automotive, jewelry, coin making, tableware, saddletrees, biomedical etc. It is used to fabricate concept models, functional models, patterns for investment and vacuum casting, medical models and models for engineering analysis (Pham and Demov, 2001) A comparative study of various process are tabulated below Parameter SLA SLS FDM Accuracy Best Flexible Process Depends On Extrusion Surface Finish Best Least Depends On Nozzle Material Limited Resins Metallic Materials can be used Large material base Buildtime High High High Cost High Cost of Equipment And Materials High Cost of Equipment Mass Production Under development Under development Functional Components can be created Component Strength Material Best
8 Que 8 Write Brief Notes of Following: 1. Stair Stepping Effect. 2. Tessellated CAD Model and Slicing 3. Applications of SLS 4. Build Styles STAIR STEPPING EFFECT RP process belong to the generative (or additive) production processes unlike subtractive or forming processes such as lathing, milling, grinding or coining etc. in which form is shaped by material removal or plastic deformation. In all commercial RP processes, the part is fabricated by deposition of layers contoured in a (x-y) plane two dimensionally. The third dimension (z) results from single layers being stacked up on top of each other, but not as a continuous z-coordinate. Therefore, the prototypes are very exact on the x-y plane but have stair-stepping effect in z-direction. If model is deposited with very fine layers, i.e., smaller z-stepping, model looks like original. RP can be classified into two fundamental process steps namely generation of mathematical layer information and generation of physical layer model. Real error on slice plane is much more than that is felt, as shown in figure 12(a). For a spherical model Pham and Demov (2001) proposed that error due to the replacement of a circular arc with stair-steps can be defined as radius of the arc minus length up to the corresponding corner of the staircase, i.e., cusp height (figure 12 (b)). Thus maximum error (cusp height) results along z direction and is equal to slice thickness. Therefore, cusp height approaches to maximum for surfaces, which are almost parallel with the x-y plane. Maximum value of cusp height is equal to slice thickness and can be reduced by reducing it; however this results in drastic improvement in part building time. Therefore, by using slices of variable thicknesses (popularly known as adaptive slicing, as shown in figure 13), cusp height can be controlled below a certain value. TESSALATION In tessellation surfaces of a CAD model are approximated piecewise by using triangles. It is true that by reducing the size of the triangles, the deviation between the actual surfaces and approximated triangles can be reduced. In practice, resolution of the STL file is controlled by a parameter namely chordal error or facet deviation as shown in figure 2. It has also been suggested that a curve with small radius (r) should be tessellated if its radius is below a threshold radius (ro) which can be considered as one tenth of the part size, to achieve a maximum chordal error of (r/ro). Value of can be set equal to 0 for no improvement and 1 for maximum improvement. Here part size is defined as the diagonal of an imaginary box drawn around the part and is angle control value (Williams et al., 1996).
9 APPLICATIONS OF SLS (1) Concept models. Physical representations of designs used to review design ideas, form and style. (2) Functional models and working prototypes. Parts that can withstand limited functional testing, or fit and operate within an assembly (3) Polycarbonate (Rapid CastingTM) patterns. Patterns produced using polycarbonate, and then cast in the metal of choice through the standard investment casting process. These build faster than wax pattern sand are ideally suited for designs with thin walls and fine features. These patterns are also durable and heat resistant. (4) Metal tools (Rapid ToolTM). Direct rapid prototype of tools of molds for small or short production runs. Selective Laser Sintering Applications: Rapid Manufacturing Aerospace Hardware UAS, UAV, UUV, UGV Hardware Medical and Healthcare Electronics; Packaging, Connectors BUILD STYLES Once part deposition orientation is decided and slice thickness is selected, tessellated model is sliced and the generated data in standard data formats like SLC (stereolithography contour) or CLI (common layer interface) is stored. This information is used to move to step 2, i.e., generation of physical model. The software that operates RP systems generates laser-scanning paths (in processes like Stereolithography, Selective Laser Sintering etc.) or material deposition paths (in processes like Fused Deposition Modeling). This step is different for different processes and depends on the basic deposition principle used in RP machine. Information computed here is used to deposit the part layer-by-layer on RP system platform.
10
Literature Review [P. Jacobs, 1992] Needs of Manufacturing Industry [X. Yan, P. Gu, 1996] Karapatics N., 1999]
Literature Review Based on this knowledge the work of others relating to selective laser sintering (SLSLM) of metal is reviewed, leading to a statement of aims for this PhD project. Provides background
More informationTHE ASPECTS ABOUT RAPID PROTOTYPING SYSTEM
THE ASPECTS ABOUT RAPID PROTOTYPING SYSTEM Adrian P. POP 1, Petru UNGUR 1, Gheorghe BEJINARU MIHOC 2 1 University of Oradea, e-mail: adippop@yahoo.com; petru_ungur@yahoo.com; 2 Transilvania University
More informationAn Overview of Methods for Rapid Prototyping and Near Net Shape Manufacture. Ivor Davies. RP&T Centre WMG, University of Warwick
An Overview of Methods for Rapid Prototyping and Near Net Shape Manufacture Ivor Davies RP&T Centre WMG, University of Warwick 2 Contents Rapid Prototyping Basic Principle Data Requirements RP Processes
More informationSTUDY OF SHAPE DEPOSITION MANUFACTURING
STUDY OF SHAPE DEPOSITION MANUFACTURING 1 Ashish Bhorkade, 2 Chetan Bharambe, 3 Suraj Bhangale 4 Pankaj Patil 1,2,3 B.E.Scholar BVCOE&RI Nashik 4 Assistant Professor Mechanical Dept. BVCOE&RI Nashik ABSTRACT
More informationAdditive Manufacturing Technology
Additive Manufacturing Technology ME 012193 Spring I 2018 By Associate Prof. Xiaoyong Tian Cell:13709114235 Email: leoxyt@mail.xjtu.edu.cn Lecture 02 Fundmental AM processes Interactions in AM processes
More informationAdditive Manufacturing Challenges Ahead
Additive Manufacturing Challenges Ahead Dr. S. SELVI Associate Professor, Dept. of Mechanical Engineering Institute of Road and Transport Technology, Erode 638 316. selvimech@yahoo.com Received 25, November
More informationAdditive Layer Manufacturing: Current & Future Trends
Additive Layer Manufacturing: Current & Future Trends L.N. Carter, M. M. Attallah, Advanced Materials & Processing Group Interdisciplinary Research Centre, School of Metallurgy and Materials Additive Layer
More information3 Major 3d printing process and technology introduction
3 Major 3d printing process and technology introduction Summary After several decades of development, Now there are a variety of 3D printing technology process, from the categories divided into extrusion
More informationNEW PRODUCT DEVELOPMENT BY RAPID PROTOTYPING
Proceedings of the National Conference on Trends and Advances in Mechanical Engineering, YMCA Institute of Engineering, Faridabad, Haryana.., Dec 9-10, 2006. NEW PRODUCT DEVELOPMENT BY RAPID PROTOTYPING
More informationAndreas Gebhardt. Understanding Additive Manufacturing. Rapid Prototyping - Rapid Tooling - Rapid Manufacturing ISBN:
Andreas Gebhardt Understanding Additive Manufacturing Rapid Prototyping - Rapid Tooling - Rapid Manufacturing ISBN: 978-3-446-42552-1 For further information and order see http://www.hanser.de/978-3-446-42552-1
More informationJohnathon Wright Application Engineer Phoenix Analysis & Design Technologies www. PADTInc.com
Johnathon Wright Application Engineer Phoenix Analysis & Design Technologies www. PADTInc.com PADT is an Engineering Services Company Three Business Groups Simulation Training, Sales & Services Product
More informationME 6018 ADDITIVE MANUFACTURING
ME 6018 ADDITIVE MANUFACTURING 1 SYLLABUS UNIT I Introduction UNIT II CAD & Reverse Engineering UNIT III UNIT IV Liquid Based & Solid Based Additive Manufacturing Systems Powder Based Additive Manufacturing
More informationWhat is Rapid Prototyping?
Rapid Prototyping New Technologies for the Classroom What is Rapid Prototyping? A set of processes that allows a concept or idea to be turned into a three-dimensional physical object, usually in a matter
More informationMold Design. Note. 13. Mold Manufacturing Techniques. Bong-Kee Lee School of Mechanical Engineering Chonnam National University.
13. Mold Bong-Kee Lee Chonnam National University Note material removing methods machining electrical discharge machining (EDM) electro chemical machining (ECM) electro chemical and chemical etchings laser
More informationExtrusion. Key Issues to Address. Lecture 2. Process. Process Variants. Process Analysis. Problem Solving
Extrusion Lecture 2 Chapter 4 Key Issues to Address Process Process Variants Process Analysis Problem Solving S.V. Atre 1 Extrusion Material is forced to flow through a die orifice to provide long continuous
More informationAdditive Manufacturing Technology November
Additive Manufacturing Technology November 2012 www.3trpd.co.uk Phil Kilburn DMLS Sales Manager Agenda About 3T RPD Ltd Overview of Additive Manufacturing Manufacturing directly in metals Arcam - Electron
More informationDIE RECONFIGURATION AND RESTORATION USING LASER-BASED DEPOSITION. T.W. Skszek and M. T. J. Lowney. Abstract. DMD Process Overview
DIE RECONFIGURATION AND RESTORATION USING LASER-BASED DEPOSITION T.W. Skszek and M. T. J. Lowney Abstract POM Company, Inc., located in Plymouth, Mich., has successfully commercialized the laser-based,
More informationAdditive Manufacturing or 3D prototyping. OO, November the 18 th
Additive Manufacturing or 3D prototyping OO, November the 18 th Definition Additive Manufacturing is defined in ASTM F2792-12 as an assembly process of successive thin layer of materials by using numerical
More informationPHYSICO-MECHANICAL PROPERTIES CHARACTERIZATION OF THE PARTS FROM PA 2200 MANUFACTURED BY SELECTIVE LASER SINTERING TECHNOLOGY
PHYSICO-MECHANICAL PROPERTIES CHARACTERIZATION OF THE PARTS FROM PA 2200 MANUFACTURED BY SELECTIVE LASER SINTERING TECHNOLOGY Borzan C.Ş.; Berce P.; Chezan H.; Sabău E.; Radu S.A.; Ridzon M.; borzan_cristina@ymail.com
More informationSeven 3D Printing Technologies January 2015
Seven 3D Printing Technologies January 2015 Summary 3D printing (3DP) also known as additive manufacturing (AM) is a process of making threedimensional objects through an additive process in which successive
More informationMajor player in the 3D Printing Market
Major player in the 3D Printing Market PolyJet FDM High- Performance Resins Production-Grade Thermoplastics High Feature Detail & Finish Highly Durable Parts Multi-Material Printing Functional Parts Makerbot
More informationCompany profile. The world s leading provider of 3D printing and manufacturing systems taking visions from idea to reality
Company profile The world s leading provider of 3D printing and manufacturing systems taking visions from idea to reality Dual headquarters Israel and US Global workforce of over 1,600 employees Strong
More informationLASER SINTERING DESIGN GUIDELINES LASER SINTERING PRODUCTION PARTS
LASER SINTERING DESIGN GUIDELINES LASER SINTERING Laser Sintering (Also known as Selective Laser Sintering, SLS, or LS) is an additive manufacturing process that builds parts by using a laser to selectively
More informationProducing Metal Parts
Producing Metal Parts CNC vs. Additive Manufacturing www.3dhubs.com METAL KIT 2 Introduction This Kit discusses how to select the right manufacturing process for metal parts by comparing CNC and Additive
More information3D printing for manufacture: a basic design guide
3D printing for manufacture: a basic design guide Contents Introduction 3 3D printing fundamentals 4 3D printing processes for manufacture 5 Selective Laser Sintering (SLS) Digital Light Processing (DLP)
More informationFULL-DENSIFICATION OF SLS PARTS BY RE-MELTING. Abstract
FULL-DENSIFICATION OF SLS PARTS BY RE-MELTING T. NIINO and H. YAMADA Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba Meguro Tokyo, 153-8505 Japan Reviewed, accepted August 4, 2004
More informationStudio System CONSUMABLES HELP 3D PRINTER SUPPORT 3D PRINTER SALES
Studio System The Desktop Metal Studio System is the world s first affordable, office-friendly metal 3D printing system. Safe and simple to use, the Studio System was designed to bring metal 3D printing
More informationAdditive Manufacturing in the Nuclear Industry
Additive Manufacturing in the Nuclear Industry Greg Hersak Mechanical Equipment Development May 4, 2018-1- Additive Manufacturing (AM) in the Nuclear Industry Agenda Overview of AM technologies Challenges
More informationADDITIVE MANUFACTURING IN PRINTED CIRCUIT BOARD ASSEMBLY PROCESSES
As originally published in the SMTA Proceedings ADDITIVE MANUFACTURING IN PRINTED CIRCUIT BOARD ASSEMBLY PROCESSES Zohair Mehkri, David Geiger, Anwar Mohammed, Murad Kurwa Flex Milpitas, CA, USA Zohair.mehkri@flextronics.com
More informationProgress of the Modelling of a Direct Energy Deposition Process in Additive Manufacturing
Progress of the Modelling of a Direct Energy Deposition Process in Additive Manufacturing Quanren ZENG a, Zhenhai XU a, b, Yankang TIAN a and Yi QIN a, 1 a Centre for Precision Manufacturing, Department
More informationCHALLENGES AND OPPORTUNITIES FOR ADDITIVE MANUFACTURING IN THE AUTOMOTIVE INDUSTRY. Paul J. Wolcott Ph.D. Body SMT Innovation
CHALLENGES AND OPPORTUNITIES FOR ADDITIVE MANUFACTURING IN THE AUTOMOTIVE INDUSTRY Paul J. Wolcott Ph.D. Body SMT Innovation Agenda 1. Additive Manufacturing in Industry 2. Opportunities in Automotive
More informationNonconventional Technologies Review no. 1/2011 RAPID PROTOTYPING FOR ROBOTICS APPLICATIONS
RAPID PROTOTYPING FOR ROBOTICS APPLICATIONS Ovidiu MOLDOVAN University of Oradea, Romania, ovidiu30@gmail.com ABSTRACT: The paper aims to an overview of the rapid prototyping technologies available and
More informationADDITIVE MANUFACTURING CERTIFICATE PROGRAM BODY OF KNOWLEDGE
ADDITIVE MANUFACTURING CERTIFICATE PROGRAM BODY OF KNOWLEDGE RUBRIC 1.0 OVERVIEW of AM 1.1 Definition of AM 1.1.1 Evolution of AM definitions 1.1.2 Current ASTM 1.2 Key Elements of AM 1.2.1 Sources of
More informationModels available: Markforged Onyx One Markforged X3 Many FDM models from numerous OEM s worldwide
Markforged Onyx One Markforged X3 Many FDM models from numerous OEM s worldwide FFF uses a string of solid material (filament), pushing it through a heated nozzle and melting it in the process. The printer
More informationPLASTICS TODAY THE MAGAZINE OF PLASTICS MANUFACTURING PRODUCTIVITY
PLASTICS TODAY THE MAGAZINE OF PLASTICS MANUFACTURING PRODUCTIVITY Selecting the 'Right' Thermocouple: There Are More Choices Today Used every day by most processors, thermocouples tend to be taken for
More informationDetermining Appropriate Cooling System For Plastic Injection Molding Through Computer Simulation
Determining Appropriate Cooling System For Plastic Injection Molding Through Computer Simulation Parag Chinchkhede 1, Dr. K. M. Ashtankar 2, 1Master Of Technology Final Year, VNIT Nagpur 2Assistant Professor,
More informationFundamentals of Manufacturing. EXAM 2 Dec 6, 2008 Name Open Book, (~75 min.) You are allowed a 5x7 card, a calculator and a pencil. Show all work.
MEEN 3349 001 Fundamentals of Manufacturing EXAM 2 Dec 6, 2008 Name Open Book, (~75 min.) You are allowed a 5x7 card, a calculator and a pencil. Show all work. Select the best definition, some may be used
More informationRAPID PROTOTYPING STUDY NO.1 INTRODUCTION TO RPT
INTRODUCTION TO RPT STUDY NO.1 RAPID PROTOTYPING Rapid prototyping (RP) is a technology wherein the physical modeling of a design is done using a specialized machining technology. The systems used in rapid
More informationENGINEERING APPLICATIONS OF WOOD WITH REFERENCE TO PROTOTYPE MANUFACTURING USING RAPID PROTOTYPING TECHNOLOGY.
ENGINEERING APPLICATIONS OF WOOD WITH REFERENCE TO PROTOTYPE MANUFACTURING USING RAPID PROTOTYPING TECHNOLOGY. Rapid Prototyping Rapid Prototyping Technology (RPT) is an emerging tool in prototypes
More informationADDITIVE MANUFACTURING BODY OF KNOWLEDGE
ADDITIVE MANUFACTURING BODY OF KNOWLEDGE The Additive Manufacturing Body of Knowledge was developed by the Additive Manufacturing Leadership Initiative (AMLI). AMLI is a collaborative group consisting
More informationCHOICES MATURE PROTOTYPE INSIDE P Controls & Sensors. 18 Prototyping. 22 Electronics. 30 Motors
October 2010 REACHING OEM DESIGN ENGINEERS ACROSS CONSUMER AND COMMERCIAL MARKETS WORLDWIDE PROTOTYPE CHOICES MATURE P. 18 INSIDE 14 Controls & Sensors 30 Motors www.appliancedesign.com ap 22 Electronics
More informationPolymer Microfabrication: Methods and Application
Polymer Microfabrication: Methods and Application Institute for Applied Materials & Department of Microsystems Engineering (IMTEK) at University of Freiburg KIT University of the State of Baden-Wuerttemberg
More informationPlastics for Additive Manufacturing
Sources: voxeljet, Materialise NV, Iris van Herpen Plastics for Additive Manufacturing Dr. Thomas Büsgen Bayer MaterialScience AG 20 th November 2013, 3D Printing & Additive Manufacturing Industrial Applications
More informationAdditive Manufacturing. Build on our experience
Additive Manufacturing Build on our experience What is Additive Manufacturing? Additive manufacturing or rapid prototyping is almost magical. In conventional machining processes, material is removed from
More informationAdditive Manufacturing for Defense & Government MAY14, NYSE:DDD
Additive Manufacturing for Defense & Government MAY14, 2015 WWW.3DSYSTEMS.COM NYSE:DDD 30 YEARS OF INNOVATION First 3D printed part 1983 Chuck Hull accepts National Inventors Hall of Fame Award -- 2014
More informationA Review on Recent Advances in Additive Manufacturing Techniques with Current Challenges and Future Directions
Volume-5, Issue-3, June-2015 International Journal of Engineering and Management Research Page Number: 335-342 A Review on Recent Advances in Additive Manufacturing Techniques with Current Challenges and
More informationCHAPTER - 1 INTRODUCTION
CHAPTER - 1 INTRODUCTION 1. 1.1 Polymer Matrix Composites Composite materials are formed by combining two or more materials that have different properties. The constituent materials work together to give
More informationDesign of 3D Metal FDM Printing Nozzle Based on Melt Forming
73 A publication of CHEMICAL ENGINEERING TRANSACTIONS VOL. 59, 2017 Guest Editors: Zhuo Yang, Junjie Ba, Jing Pan Copyright 2017, AIDIC Servizi S.r.l. ISBN 978-88-95608-49-5; ISSN 2283-9216 The Italian
More informationUniversity of California, Berkeley Department of Mechanical Engineering. E27 Introduction to Manufacturing and Tolerancing.
University of California, Berkeley Department of Mechanical Engineering E27 Introduction to Manufacturing and Tolerancing Fall 2015 Take-home midterm assignment Issued October 18, 2015. Due Wednesday October
More informationRAPID PATTERN BASED POWDER SINTERING TECHNIQUE AND RELATED SHRINKAGE CONTROL
RAPID PATTERN BASED POWDER SINTERING TECHNIQUE AND RELATED SHRINKAGE CONTROL Jack G. Zhou and Zongyan He ABSTRACT Department of Mechanical Engineering and Mechanics Drexel University 3141 Chestnut Street
More informationEarly Progress on Additive Manufacturing of Nuclear Fuel Materials
Early Progress on Additive Manufacturing of Nuclear Fuel Materials Andrew Bergeron, Brent Crigger Cathy Thiriet (presenter) 2018 October 30-1- Outline Background Stereolithography 3D printing method (SLA)
More information10. Utility Theory in Complex Engineering Design. School of Mechanical Engineering Associate Professor Choi, Hae-Jin
10. Utility Theory in Complex Engineering Design School of Mechanical Engineering Associate Professor Choi, Hae-Jin Why Utility Theory?? Importance of properly formulated objective functions in decision-making
More informationStereolithography for Rapid Tooling for Injection Molding: The Effect of Cooling Channel Geometry
Stereolithography for Rapid Tooling for Injection Molding: The Effect of Cooling Channel Geometry M. Janczyk, R. McLaughlin, R. Malloy, and S. McCarthy* Institute for Plastics Innovation, University of
More informationAgenda. Introduction Drivers AM in mould technology 10/23/17. Additive Manufacturing voor matrijzenbouw. 23 oktober 2017, Sint-Niklaas
Additive Manufacturing voor matrijzenbouw 23 oktober 2017, Sint-Niklaas 1 Agenda Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning. - Albert Einstein
More informationUltimaker guide. How to design for FFF 3D printing
Ultimaker guide How to design for FFF 3D printing How to design for FFF 3D printing Table of contents 1. Introduction 3 2. Part requirements 5 3. Choosing your material 9 4. CAD modeling for FFF 14 5.
More informationJewelry Laser Spot Welding Machine
Jewelry Laser Spot Welding Machine This laser spot welding machines are used for perforation and spot welding of sand hole for gold and silver jewelleries. Laser spot welding is an important application
More informationSelective Inhibition Sintering: Advancements & Systematic Research approaches for the process development
Selective Inhibition Sintering: Advancements & Systematic approaches for the process development Sagar M Baligidad 1, K Elangovan 2 and S Gopi 3 1 scholar, Visvesvaraya Technological University, Belgaum,
More informationebook Prototyping and Manufacturing Services to Help Satisfy Modern Market Expectations
ebook Prototyping and Manufacturing Services to Help Satisfy Modern Market Expectations Appearance prototype of clock radio for award-winning designer Robert Bronwasser. (Courtesy of Robert Bronwasser
More information1. 3 Extrusion molding
1. 3 Extrusion molding 9 Extrusion is a widely used technique, both in the field of traditional and technical ceramics. This method allows the continuous manufacture of products with a constant cross-
More informationElectrophotographic powder deposition for freeform fabrication
Electrophotographic powder deposition for freeform fabrication Ashok V. Kumar and Hongxin Zhang Department ofmechanical Engineering University offlorida, Gainesville, FL 32611-6300 Abstract Research at
More informationDirect Metal Printers. Metal Additive Manufacturing with the ProX DMP Series
Direct Metal Printers Metal Additive Manufacturing with the ProX DMP Series Go further with Direct Metal Printing UNLOCK YOUR PRODUCT S POTENTIAL With complete design freedom, direct metal 3D printed parts
More informationMaterials and Fastening Solutions Study
May, 2009 Conducted by: Introduction and Methodology Purpose and Objectives Methodology This research was conducted to provide Design News with current information on the growing importance of processes
More informationLONG-TERM AGEING EFFECTS ON FUSED DEPOSITION MODELING PARTS MANUFACTURED WITH ULTEM*9085. Abstract. Introduction
LONG-TERM AGEING EFFECTS ON FUSED DEPOSITION MODELING PARTS MANUFACTURED WITH ULTEM*985 A. Bagsik 1,2, V. Schöppner 1, E. Klemp 2 1 Kunststofftechnik Paderborn (KTP), University of Paderborn, D-3312 Paderborn,
More informationManufacturing and Security Challenges in Additive Manufacturing
Manufacturing and Security Challenges in Additive Manufacturing Nikhil Gupta, Ph.D. Composite Materials and Mechanics Laboratory Mechanical and Aerospace Engineering New York University, Tandon School
More informationInvestigation of Dimensional Accuracy/Mechanical Properties of Part Produced by Selective Laser Sintering
International Journal of Applied Science and Engineering 2012. 10, 1: 59-68 Investigation of Dimensional Accuracy/Mechanical Properties of Part Produced by Selective Laser Sintering Sharanjit Singh *,
More informationPROTOTYPES. Gestión de Compras have the means to get prototypes with state-of-art processes according to customer drawings.
PROTOTYPES Gestión de Compras have the means to get prototypes with state-of-art processes according to customer drawings. PRODUCT: Most manufacturing companies are involved in product development, a process
More informationProduct-Info 3D-MID. 1. Introduction. 2. Material and manufacturing process. 1/5
Product-Info 3D-MID 1. Introduction The term 3D-MID (3D moulded interconnect devices) stands for injectionmoulded, three-dimensional circuit carriers that have been in use for many years in various fields
More informationThermoforming Plug Assist Materials TOOLING TECHNOLOGY
Thermoforming Plug Assist Materials TOOLING TECHNOLOGY TOOLING TECHNOLOGY THERMOPLASTIC SYNTACTIC FOAM PLUG ASSIST MATERIALS Thermoplastic Syntactic Foam Material Thermoplastic Syntactic Foam is one of
More informationSolidification of Metals in Molds
Metal Casting Solidification of Metals in Molds Pure Metals - Solidify at a constant temperature Planar solidification front Columnar crystals Eutectics - Solidify at a constant temperature Planar solidification
More informationAdditive manufacturing with NX
Additive manufacturing with NX Delivering design, simulation and manufacturing software solutions for powder bed 3D printing Benefits Transform production processes and manufacture revolutionary products
More informationLPKF LDS Prototyping. Technology, Process Steps and Systems
LPKF LDS Prototyping Technology, Process Steps and Systems 1 Basics About LPKF LDS MID Molded Interconnected Devices: circuitry on three-dimensional carriers Basic part is a single-shot molded or 3D-printed
More informationPrinciple more than 3D Printing but Additive Manufacturing
Primary questions: How can be one solid layer formed? z How can two layers be adhered? x y Process requirement (functional): FR1: create one solid layer. FR2: glue two consecutive layers in the deposit
More informationPowder Bed Fusion Lich. Tech. Jukka Tuomi Aalto University
MEC-E7006 Advanced Manufacturing (2018) Powder Bed Fusion Lich. Tech. Jukka Tuomi Aalto University ISO AM process terms Vat Photopolymerization Powder Bed Fusion Material Extrusion Material Jetting Binder
More informationGuidelines for Calculating Emissions from Polyester Resin Operations (December 2016)
Guidelines for Calculating Emissions from Polyester Resin Operations (December 2016) The purpose of this document is to provide operators with guidelines in estimating volatile organic compound (VOC) emissions
More informationDIRECT METAL PRINTERS. Metal Additive Manufacturing with the ProX DMP Series
DIRECT METAL PRINTERS Metal Additive Manufacturing with the ProX DMP Series Go Further with Direct Metal Printing UNLOCK YOUR PRODUCT S POTENTIAL With complete design freedom, direct metal 3D printed parts
More informationPowder spreading in additive manufacturing. Sina Haeri James Weir Fluid Lab Mechanical and Aerospace Engineering University of Strathclyde
Powder spreading in additive manufacturing Sina Haeri James Weir Fluid Lab Mechanical and Aerospace Engineering University of Strathclyde Outline Overview of Additive Manufacturing Technologies Powder
More informationMoldmaking with 3D Prints
FORMLABS WHITE PAPER: Moldmaking with 3D Prints Techniques for Prototyping and Production October 25, 2016 formlabs.com Table of Contents Introduction 3 Injection Molding 5 Thermoforms 7 Casting with Elastomers
More informationMSC Solutions for Additive Manufacturing Simufact Additive
MSC Solutions for Additive Manufacturing Simufact Additive 15.01.2018 Simufact Product Portfolio Cold Forming Hot Forging Sheet Metal Forming Mechanical Joining Powder Bed Fusion Arc Welding Laser Beam
More informationIndustrial Engineering Applications of Rapid Prototyping
Industrial Engineering Applications of Rapid Prototyping Dr. Denis Cormier Rochester Institute of Technology Department of Industrial and Systems Engineering Introductions 1995-2009 North Carolina State
More informationBoeing s Vision for Rapid Progress between Dream and Reality
Boeing s Vision for Rapid Progress between Dream and Reality Jeffrey DeGrange Senior Manager Advanced Manufacturing Research & Development St. Louis, Missouri USA Euro-uRapid 2006 Frankfurt, Germany November
More informationFDM - FUSED DEPOSITION MODELING
FDM - FUSED DEPOSITION MODELING 3 D P R I N T I N G & A D VA N C E D M A N U FA C T U R I N G BUILD STABLE AND ROBUST Produce parts with the most demanding requirements, ready for tough testing and harsh
More information2
1 2 3 4 5 6 7 Direct -Straightforward steady forward force by hydraulic ram Indirect -Has the advantage that there is no friction between billet and chamber (no movement) -Note dummy block at face of ram
More informationA MODEL FOR RESIDUAL STRESS AND PART WARPAGE PREDICTION IN MATERIAL EXTRUSION WITH APPLICATION TO POLYPROPYLENE. Atlanta, GA 30332
Solid Freeform Fabrication 2016: Proceedings of the 26th 27th Annual International Solid Freeform Fabrication Symposium An Additive Manufacturing Conference A MODEL FOR RESIDUAL STRESS AND PART WARPAGE
More informationCONTRACT MANUFACTURER OF PRECISION POWDERED METAL PARTS
ASCO Sintering Co. CONTRACT MANUFACTURER OF PRECISION POWDERED METAL PARTS Precision Powdered Metal Gears Net Shape to AGMA 8 Certification at reduced cost Executive Summary Asco produces over 16,000,000
More informationDr. M. Sayuti, ST.,M.Sc JURUSAN TEKNIK INDUSTRI FAKULTAS TEKNIK UNIVERSITAS MALIKUSSALEH
POWDER METALLURGY Dr. M. Sayuti, ST.,M.Sc JURUSAN TEKNIK INDUSTRI FAKULTAS TEKNIK UNIVERSITAS MALIKUSSALEH 1- INTRODUCTION Powder metallurgy is the name given to the process by which fine powdered materials
More informationAgenda. Introduction Drivers 10/26/16. Metal Additive Manufacturing. 25 oktober 2016, Gavere
Metal Additive Manufacturing 25 oktober 2016, Gavere 1 Agenda Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning. - Albert Einstein - Introduction Drivers
More informationADDITIVE MANUFACTURING: ENABLING ADVANCED MANUFACTURING
ADDITIVE MANUFACTURING: ENABLING ADVANCED MANUFACTURING NAE Convocation of the Engineering Professional Societies Washington, D.C. April 22, 2013 Tim Shinbara Technical Director AMT - The Association For
More informationCONFORMAL COOLING IN ACTION
CONFORMAL COOLING IN ACTION New manufacturing techniques set the stage for more efficient cooling systems that reduce cycle time, warpage, and visual defects. The right idea for higher efficiency The faster
More informationHighland Composites. Expandable on-site to ~188k sq. ft. (expansion area purchased and graded).
Highland Composites New state-of-the-art ~63k sq. ft. facility including 4k+ sq. ft. clean assembly room, 2k+ sq. ft. quality lab, ample shipping with dock and ramp loading. Expandable on-site to ~188k
More informationebook Outsourced Prototyping and Manufacturing Help Satisfy Modern Market Expectations
ebook Outsourced Prototyping and Manufacturing Help Satisfy Modern Market Expectations Appearance prototype of clock radio for award-winning designer Robert Bronwasser. (Courtesy of Robert Bronwasser Design)
More informationModule 3 Selection of Manufacturing Processes. IIT Bombay
Module 3 Selection of Manufacturing Processes Lecture 1 Review of Manufacturing Processes Instructional objectives By the end of this lecture, the student will learn what are the different types of manufacturing
More informationThe Definitive Guide to Direct Metal Printing
Design guide The Definitive Guide to Direct Metal Printing 3dsystems.com Contents 03 Why Direct Metal Printing 04 The Direct Metal Printing (DMP) Process 05 Basic Principles of DMP 13 Part Orientation
More informationA Framework for Large Scale Fused Pellet Modeling (FPM) by An Industry Robot. Zhiyuan Wang, Renwei Liu, Todd Sparks, and Frank Liou
A Framework for Large Scale Fused Pellet Modeling (FPM) by An Industry Robot Zhiyuan Wang, Renwei Liu, Todd Sparks, and Frank Liou Department of Mechanical & Aerospace Engineering, Missouri University
More informationFORMLABS WHITE PAPER: A Guide to Post-Curing Formlabs Resins. March 2018 formlabs.com
FORMLABS WHITE PAPER: A Guide to Post-Curing Formlabs Resins March 218 formlabs.com Table of Contents Abstract 3 Methodology 4 Introduction 5 Recommended Cure Settings: Clear. 6 Recommended Cure Settings:
More informationProcess Capability Study of Selective Laser Sintering for Plastic Components
I J M S E Serials Publications 8(2) 2017 : July-December pp. 135-139 Process Capability Study of Selective Laser Sintering for Plastic Components Ru p i n d e r Si n g h 1 a n d Ra n v i j a y Ku m a r
More informationHybrid Manufacturing and 3D Printing Restricted Siemens AG 2013 All rights reserved.
Andreas Saar MBSE Summit - Los Angeles January 25, 2015 Hybrid Manufacturing and 3D Printing Restricted Siemens AG 2013 All rights reserved. Page 1 2014-06-16 Additive Manufacturing 3D Printing Additive
More informationHigh Speed Sintering for 3D printing applications
High Speed Sintering for 3D printing applications High Speed Sintering for 3D printing applications Neil Hopkinson, Adam Ellis, Adam Strevens, Manolis Papastavrou and Torben Lange, Xaar plc Introduction
More informationSanjay Joshi, Ph.D. Professor of Industrial and Manufacturing Engineering
Sanjay Joshi, Ph.D. Professor of Industrial and Manufacturing Engineering Harold and Inge Marcus Department of Industrial and Manufacturing Engineering Introduction to CIMP-3D Center for Innovative Materials
More information