HIGH SPEED TOOL STEELS

Transcription

1 SEAVANS North Bldg. 2-1, Shibaura 1-chome, ato-ku Tokyo , Japan Specialty Steel Company. Tel Fax Manhattanville Road, Suite 301, Purchase, NY 10577, U.S.A. Tel Fax Chicago Detroit Pittsburgh CharlotteSan Jose Immermannstrasse 14-16, Düsseldorf, Germany Tel Fax South Germany Milano London Paris 12 Gul Avenue, Singapore Tel Fax Room 1107, 11/F., West Wing, Tsim Sha Tsui Center 66 Mody Road, Tsimshatsui East Kowloon, Hong Kong Tel Fax HIGH SPEED TOOL STEELS Cha shan Town Dong Guan City, Guang Dong Province, China Tel: Fax: Our address and your contact indicated in this catalog are those as of May If you cannot put a call through, please contact Corporate Communication Group in Tokyo below. Tel: Fax: hmcc@hitachi-metals.co.jp 11F. Tian An Center, No.338 Nanjing Road(West), Shanghai, , China Tel Fax Guangzhou Liaison Office Cha Shan Town, Dong Guan City, China Tel Fax Beijing Liaison Office Room No.1418, Beijing Fortune Building, 5 Dong San Huan Bei-lu Chaoyang District Beijing, China Tel Fax Guangzhou Liaison Office R3303, Metro plaza, 183 Tianhebei Road Tianhe District, Guangzhou city, Guangdong, China Tel Fax HY-B1(J,E)-

2 Chemical compositions of YSS Speed Tool Steels 4 2 XVC11 Yasugi (kaigan) Works YSS Speed Tool Steels are used not only for cutting tools but also various forming tools which require higher wear resistance and toughness. Along with conventional type steels, there are some grades made by powder metallurgy process (HAP series) that has superb wear resistance and toughness because of higher alloy content and uniform fine microstructure. YSS Speed Tool Steels are made of strictly chosen raw material, and made with advanced refining and casting (powder metallurgy) technologies. Outstanding features; 1 toughness 2 wear resistance 3 Stabilized heat treatment property 4 Stable performance due to uniform and fine carbide distribution 5 Good mechanical properties coming from fine and uniform grain size 6 purity with least inclusions and gases 3

3 Features and Applications of YSS Speed Tool Steels Recommended grade by application Cutting tools shows standard employed hardness/hrc. 4 2 XVC11 Molybdenum high speed steel with Drill, Reamer, Broach, Chaser, superior wear resistance Metal saw, Cutters Standard Molybdenum high speed steel Molybdenum high speed steel with superior Standard Cobalt alloyed Molybdenum high Molybdenum high speed steel with Molybdenum high speed steel with Cobalt alloyed Molybdenum high speed Super-hard high speed steel suitable for -performance high speed steel with Cobalt alloyed Vanadium high speed steel -performance Cobalt alloyed Vanadium Vanadium high speed steel with superior Drill, Reamer, Broach, Chaser, Endmill, Hob, Cutters Hob, Drill, Reamer, Chaser, Cutters, Tap, Roller dies Tap, Drill, Broach Hob, Cutters Drill, Cutters, Hob, Tap, Endmill, Hob, Broach, Cutters, Drill, Tool bit, Roll Tool bit, Cutters, Hob, Endmill, Wear resistance parts, Cold extrusion punch, with superior toughness heat resistance, wear resistance and toughness speed steel with superior heat resistance superior grindability and toughness superior heat resistance and toughness steel suitable for intermittent cutting cutting for hard materials superior durability, toughness and grindability with highest wear resistance high speed steel with wear/heat resistance wear resistance Metal saw, Cutters, Cold punch, Dies Heading tool for stainless, Endmill Wood working tools Tap, Heading tool for stainless Cold punch, Dies Press die(mass-pro), Formed cutters Standard Tungsten high speed steel Cutters, Broach Standard Cobalt alloyed Tungsten high Cobalt alloyed Tungsten high speed steel Cutters Tool bit, Milling cutter, Hob speed steel with super high heat resistance 3 Matrix high speed steel for forging tools with most superior toughness Matrix high speed steel for forging tools with superior toughness Warm forging dies, Hot forging dies, Cold forging dies, AI-die cast insert pin Warm forging dies, Cold heading punch, Trimming dies, Cold forging punch and die Matrix high speed steel for forging tools Cold punch and die, with superior strength/toughness Toughest P/M high speed steel Superior toughness effective to avoid chipping Most standard grade with good balance of hardness, toughness and wear resistance er hardness, good heat and wear resistance Good heat wear resistance and highest obtainable hardness of 70HRC Fine blanking die, Thread roller die Severe forming tools, cold/warm forging dies, fine blanking dies Heavy duty working tools as fine blanking dies, Lower speed cutting tools as taps Cutters, Dies Heavy duty cutting tools for hard material Heavy duty cutting tools, Dies Recomended Grade Application For general use For hard material cutting For high speed heavy duty cutting Tool bit Drill Tap Reamer Milling cutter End mill Broach Hob Pinion cutter Shaving cutter Rack cutter Chaser Metal saw Hack saw Metal band saw Wood cutter (65~68) (69~71), (63~66), (63~66) (63~66), (63~66), (63~66), (64~66) (67~69), (63~66) (64~67), (64~69) 4 (65~67), (63~65), (64~66), (63~66), (62~65), (63~66), (62~65) (64~66) (58~61), (62~65), 2 (66~68) (66-68), (68~70) 0, 0 (65~67), (65~67), (65~67) 2, (65~67) (66~68) (67~69) (69~71) (66~68), (66~68) (67~69) (67~69) (65~67) 0 (65~67) 2, (66~68) (65~67) 0 (65~67) (65~67) 2 (66~68) (66~68) 2 (66~68) (66~68) 2 (66~68) 6, 4 (65~67), (66~68) 0, 0 (65~67) (65~67) (64~67), (65~67), (66~68) (66~68) (66~69), (69~71) 0 (65~67), (66~68), (66~68) 4 (64~66), (64~66) (65~67), 0 (65~67) 2, (65~67) (65~67) YXR42 (66~68) (66~68) (66~68), (65~67) Cold working tools Blanking die Male die Cold heading die Female die For sheet service Shearing blade For medium plate (Straigh tooth) For heavy plate Rotary shear slitter For sheet use Trimming dies For heavy plate use Bender Swaging dies Male die Cold working dies Female die Drawing dies Cold working rolls Thread rolling dies Coining dies Cold hobbing dies Thead cutting dies

4 Heat treatment conditions Standard heat treatment conditions 4 2 XVC11 3 Annealing Temperature Quenching Tempering Annealed Hardness Quenched and tempered Remarks (1) To obtain higher hardness (for simple figure tools) (2) To obtain better toughness (for complex figure tools) q w e Holding time of austenitizing Preheat 1st C 30minutes/25mm thickness 2nd 850 C 2 x figure of following table 3rd 1,050 C 2 x figure of following table Tools of ordinary shape 1st stage preheating 500~550 C 30min/25mm Holding time at austenitizing temperature Heating furface Time Salt bath Holding time (sec) Holding time at tempering temperature Thickness Tempering holding time (hour) 2nd stage preheating 850 C Thickness Magnification(Holding time/thickness) (Remarks) Holding time in salt bath = dipping time X Annealing 1. All material is delivered as spheroidized annealed condition. 2. When used after reforging, spheroidized annealing is to be done before hardening. 3. Stress relief annealing is to be done in order to remove stress occured by cold working such as cold drawing, cold rolling or cutting and machining. Heating temperature : 650~750 C (to aim higher temperature when softening required) Holding time :1h/25mm thickness When the object is of simple shape with thickness less than 50mm or when facilities are restricted, 2nd and 3rd steps are combined to one step with Cx2x table-1. When the object is small, 1st step may be skipped. Austenitizing temperature Table Holding time quenching x 2 450~550 C 30min/25mm X X8 Gradual cooling About 80 C X8 Tempering X (Remarks) Tempering is needed more than 2times for grades contain no cobalt and needed more than 3 times for grades cobalt alloyed in order to make it tough enough. 4 (Remarks) X X6.5 As for simple figure tools, 1st stage preheating can be skipped and oil quenching can be applied instead of hot salt bath quenching. For complex figure tools, 3rd stage preheat (1,050 C) applying is preferable X X X

5 Quenched and tempered hardness curve Tempered hardness Tempered hardness Tempered hardness Tempered hardness Tempered hardness Tempered hardness Tempered hardness 3 Tempered hardness Tempered hardness Tempered hardness 4 Tempered hardness 2 Tempered hardness Tempered Hardness Tempered hardness Tempered hardness Tempered hardness Tempered hardness Tempered hardness Tempered hardness XVC11 Tempered hardness Tempered hardness Tempered hardness Tempered hardness

6 Properties of typical high speed steels Elevated temperature hardness Heat treated hardness Wear resistance Grindability Toughness Tool life (sec.) 1,800 1,500 1, Grade Cutting condition Work Machine Automatic lathe Tool tip shape Cutting speed Depth of cut Feed Dry cutting 4 2 high Wear resistance, Strength SLD YCS3 SLD8 SGT ARK1 3 DAC Toughness high