-SQA- SCOTTISH QUALIFICATIONS AUTHORITY HIGHER NATIONAL UNIT SPECIFICATION GENERAL INFORMATION MACHINE WOODWORKING: PROFILE GRINDING

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1 -SQA- SCOTTISH QUALIFICATIONS AUTHORITY HIGHER NATIONAL UNIT SPECIFICATION GENERAL INFORMATION -Unit Number Superclass- -Title- WK MACHINE WOODWORKING: PROFILE GRINDING DESCRIPTION- GENERAL COMPETENCE FOR UNIT: Developing skills and knowledge in safely setting up and operating a profile cutter-grinding machine and in utilising the associated tooling and equipment. OUTCOMES 1. select and prepare tooling and equipment; 2. set the profile grinding machine; 3. grind cutters to profile. CREDIT VALUE: 1 HN Credit ACCESS STATEMENT: Access to this unit is at the discretion of the centre. However it would be helpful if the candidate had successfully completed a recognised SQA modular programme in Machine Woodworking to SVQ level III. The unit forms part of the Advanced Certificate in Machine Woodworking and is aimed at candidates following a career in machine woodworking and receiving complementary industrial experience For further information contact: Committee and Administration Unit, SQA, Hanover House, 24 Douglas Street, Glasgow G2 7NQ. Additional copies of this unit may be purchased from SQA (Sales and Despatch section). At the time of publication, the cost is 1.50 (minimum order 5).

2 HIGHER NATIONAL UNIT SPECIFICATION STATEMENT OF STANDARDS UNIT NUMBER: UNIT TITLE: WOODWORKING: PROFILE GRINDING Acceptable performance in this unit will be the satisfactory achievement of the standards set out in this part of the specification. All sections of the statement of standards are mandatory and cannot be altered without reference to SQA. OUTCOME 1. SELECT AND PREPARE TOOLING AND EQUIPMENT PERFORMANCE CRITERIA Select cutterblocks, cutters and template stock correctly. Set up the cutterblock accurately. Transfer contra-profile to the template accurately. Shape template accurately. Work methods and activities are correct in terms of: sequencing work; satisfying current safety regulations. RANGE STATEMENT Information sources: manufacturer's handbook; information sheets; drawings; oral or written instructions. Equipment: setting gauges; dial gauges; verniers; micrometers; setting stand. Tools and tooling: saws; guillotines; serrated back cutters; plain cutters; slotted cutters; marking fluids; drawing instruments; moulds; templates; marking tools; grinders; files; punches; drills; cutterblocks. Materials: metals; plastics. Safety: HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations. 2

3 EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: selecting tooling and template stock; setting cutters in cutterblock; shaping template. Oral or written evidence of knowledge and understanding of: types and purpose of information sources; types of cutter; responsibilities regarding statutory legislation. OUTCOME 2. SET THE PROFILE GRINDING MACHINE PERFORMANCE CRITERIA The cutterblock is mounted on the machine correctly. The template is fixed and its lateral position adjusted accurately. The dressed grinding wheel conforms with the shape of the grinding stylus. The machine is set correctly. Work methods and activities are correct in terms of: (iv) selecting and testing grinding wheel; setting up grinding wheel; personal protection procedures; satisfying current safety regulations. RANGE STATEMENT Information sources: manufacturer's handbook; information sheets; drawings; oral or written instruction. Tools and tooling: spacing pieces; spanners and keys; roughing and finishing grinding wheels; diamond dressing tools. Setting up: mounting; trueing; shaping. Machine settings: clearance angle; depth of cut; cutter guide position. Safety: HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations; Abrasive Wheels Regulations. 3

4 EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in: (iv) (v) mounting the cutterblock; positioning template; selecting and testing grinding wheels; mounting and dressing grinding wheel; making adjustments to settings. Oral or written evidence of knowledge and understanding of: types and purpose of information sources; personal protection; responsibilities regarding statutory regulations. OUTCOME 3. GRIND CUTTERS TO PROFILE PERFORMANCE CRITERIA (f) Rough grind the cutters accurately. Apply side clearance accurately. Set for finish grinding accurately. Apply finish grinding accurately. Cutters are ground to stated tolerance. Work methods and activities are correct in terms of: personal protection procedures; satisfying current safety regulations. RANGE STATEMENT Information sources: manufacturer's handbook; information sheets; oral or written instruction. Procedures: initial grinding techniques; fine adjustment; diamond dressing; roughing out; final grinding; side clearance angles; wet grinding. Safety: HSW Act (Health and Safety at Work etc Act); COSHH (Control of Substances Hazardous to Health) Regulations; Abrasive Wheels Regulations. EVIDENCE REQUIREMENTS Performance evidence of competence under working conditions in grinding cutters. Oral or written evidence of knowledge and understanding of: types and purpose of information sources; 4

5 personal protection; responsibilities regarding statutory legislation. MERIT A candidate who achieves all performance criteria for all outcomes will be awarded a pass. A pass with merit may be awarded to a candidate who substantially exceeds the minimum requirements of the unit for practical competence in outcomes 1, 2 and 3 and who consistently demonstrates at least four of the following: (f) logical sequencing of work; optimum use of time and resources; high organisational ability; high motivation; high degree of accuracy in numerical work; high awareness of, and compliance with, safety requirements ASSESSMENT In order to achieve this unit, candidates are required to present sufficient evidence that they have met all the performance criteria for each outcome within the range specified. Details of these requirements are given for each outcome. The assessment instruments used should follow the general guidance offered by the SQA assessment model and an integrative approach to assessment is encouraged. (See references at the end of support notes). Accurate records should be made of the assessment instruments used showing how evidence is generated for each outcome and giving marking schemes and/or checklists, etc. Records of candidates' achievements should also be kept. These records will be required for external verification. SPECIAL NEEDS Proposals to modify outcomes, range statements or agreed assessment arrangements should be discussed in the first place with the external verifier. Copyright SQA 1995 Please note that this publication may be reproduced in whole or in part for educational purposes provided that: no profit is derived from the reproduction; if reproduced in part, the source is acknowledged. 5

6 HIGHER NATIONAL UNIT SPECIFICATION SUPPORT NOTES UNIT NUMBER: UNIT TITLE: MACHINE WOODWORKING: PROFILE GRINDING SUPPORT NOTES: This part of the unit specification is offered as guidance. None of the sections of the support notes is mandatory. NOTIONAL DESIGN LENGTH: SQA allocates a notional design length to a unit on the basis of the time estimated for achievement of the stated standards by a candidate whose starting point is as described in the access statement. The notional design length for this unit is 40 hours. The use of notional design length for programme design and timetabling is advisory only. CONTENT/CONTEXT The candidate successfully completing this unit will require a basic knowledge of woodworking machine tooling. The unit deals with the setting up and operation of a profile grinding machine to produce cutters for a range of mouldings and moulding machines. The unit is offered to candidates involved in machine woodworking or related trades and is complemented by other units. APPROACHES TO GENERATING EVIDENCE The student should be provided with a brief comprising moulded samples, full size and section drawings and specifications for at least two mouldings together with a range of cutter blanks, cutterblocks and suitable tools. A clear explanation of the requirements for successful completion should be given. Demonstrations, instructions and information sheets together with guidance should be given at every stage of the project. ASSESSMENT PROCEDURES Since the unit comprises almost entirely of practical work, an assignment would be a suitable means of assessment. Assignment The assignment should include sufficient information for the assessment of all outcomes and all performance criteria to pass and merit standard. A pass with merit should be commensurate with the inclusion within the range produced of profiles requiring a high degree of accuracy ie matched mouldings, circular sections or compound shapes. PROGRESSION This unit forms part of the programme for the Advanced Certificate in Machine Woodworking. Candidates successfully completing the Advanced Certificate will be able to progress to the HNC in Construction Practice. 6

7 Each unit is a separate part of the framework of units for the award and units are not necessarily taken in a prescribed order, although there is a logical sequence to the acquisition of the skills and knowledge concerned. To gain the award the candidate must successfully complete all of the following mandatory units. Machine Woodworking: Shaping Machines Machine Woodworking: Sawing Machine Woodworking: Planing, Moulding and Sanding Machine Woodworking: Computer Aided Manufacture (CAM) Machine Woodworking: Jointing Techniques plus two of the following optional units: Machine Woodworking: Profile Grinding Machine Woodworking: Setting Out Machine Woodworking: CNC Machining (Routing) Machine Woodworking: CNC Part Programming (Routing) REFERENCES 1. Guide to unit writing. 2. For a fuller discussion on assessment issues, please refer to SQA's Guide to Assessment. 3. Information for centres on SQA's operating procedures is contained in SQA's Guide to Procedures. 4. For details of other SQA publications, please consult SQA's publications list. Copyright SQA 1995 Please note that this publication may be reproduced in whole or in part for educational purposes provided that: no profit is derived from the reproduction; if reproduced in part, the source is acknowledged. 7