Volume 16 - Machining Part 18 doc

... Wear Mechanisms. A 10-year research program on tool materials for high-speed machining concluded that the two major wear mechanisms associated with high-speed machining are high-speed chemical dissolution ... minimal. Implementing High-Speed Machining (Ref 26) There are several factors to be considered by companies planning to employ high-speed machining systems. Whether high-spe...

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... Chemical machining of Ti-6Al-4V resulted in an 18% drop in fatigue strength compared to gentle grinding, while the electrochemical machining and electrical discharge machining of Inconel 718 produced ... high-vanadium super high-speed tool steels (M4 and T15) 194 0-1 952 Increasing substitution of molybdenum for tungsten 1953 Introduction of sulfurized free -machining hig...

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... Tantung 144, % Cobalt 4 2-4 7 4 0-4 5 Chromium 2 7-3 2 2 5-3 0 Tungsten 1 4-1 9 1 6- 21 Carbon 2-4 2-4 Tantalum or niobium 2-7 3-8 Manganese 1-3 1-3 Iron 2-5 2-5 Nickel 7 (a) 7 (a) ... material: Case-hardening steel (Fe-1.2Ni-1Cr-0.2C-0.12Mo); hardness: 160 to 180 HB • Cutting speed: 70 m/min (230 ft/min) • Spindle speed: 150 rev/mi...

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... 2 0-6 5 5-1 7 1 9-3 2 mm (0.7 5-1 .25 in.) diameter 4 0-1 50 1 0-4 0 3 2-3 8 mm (1.2 5-1 .50 in.) diameter 6 4-1 90 1 7-5 0 Internal chip removal type 7. 9-9 .4 mm (0.3 1-0 .37 in.) diameter 2 0-3 0 5-8 9. 4-1 9 ... diameter 7-1 1 2-3 Drilling, large 0.3 to 0.43 × diam, mm 2-3 × diam, in. Gundrilling External chip removal type 4. 6-...

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... these conditions 2 2-1 .5 1 1-1 9 0.25 0.010 2 1-0 .5 2 0-4 8 0.20 0.008 4 2 5-6 1-4 0.45 0. 018 2 5. 5-2 .5 5-1 0 0.30 0.012 2 2-1 .5 1 1-1 9 0.25 0.010 12 5-1 75 Hot rolled, normalized, ... 32 5-3 75 Quenched and tempered 2 1-0 .5 2 0-4 8 0.20 0.008 12 40 S5, S11 M3, M42 Wrought free -machining alloy steels 4 2 5-6...

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... regular features on parts with defined axes of rotation 25 5- 455 1 0- 18 45 5- 183 0 1 8- 72 61 0- 915 10 0- 205 2 4- 36 4-8 5. 6- 19 7 -2 5 320 0- 8200 700 0- 18, 000 Heavy-duty plain cylindrical ... 20 5- 610 8- 24 61 0- 183 0 2 4- 72 51 0- 915 5 0- 100 2 0- 36 2-4 1 9- 30 2 5- 40 11,50...

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... Grind 0.4 0-0 .80 1 6- 32 Key (1 018) Mill 3.2 125 Holder (1 018) Mill 3.2 125 Bracket (1 018) Mill 3.2 125 Plate (1 018) Mill 3.2 125 Block (1 018) Mill 3.2 125 Junction block (1 018) Grind ... v. 16. Machining I. Metals Handbooks, manuals, etc. I. ASM Handbook Committee. II. ASM International. Handbook Committee. TA459.M43 1978 669 7 8-1 4934 ISBN 0-8 717 0-0...

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... 50 0-7 00 7 0-1 00 9 3-9 4 3. 5-4 .5 3. 2-4 .1 Al 2 O 3 -ZrO 2 70 0-9 00 10 0-1 30 9 3-9 4 5. 0-8 .0 4. 5-7 .3 Al 2 O 3 -TiC 60 0-8 50 9 0-1 20 9 4-9 5 3. 5-4 .5 3. 2-4 .1 Al 2 O 3 -SiC w 55 0-7 50 8 0-1 10 9 4-9 5 4. 5-8 .0 ... 9 4-9 5 4. 5-8 .0 4. 1-7 .3 Si 3 N 4 70 0-1 050 10 0-1 50 9 2-9 4 6. 0-8 .5 5. 5-7 .7 SiAlON 70 0...

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... single-point and box tools High-speed steel 0.1 3-0 .38 0.00 5-0 .015 Carbide 0.1 3-0 .38 0.00 5-0 .015 Ceramic 0.0 8-0 .51 0.00 3-0 .020 For form tools High-speed steel 0.01 3-0 .08 0.000 5-0 .003 ... 127 418 80 264 53 173 35 116 24 78 17 57 16 54 3.2 127 418 80 263 52 171 34 112 23 75 16 52 12 40 6.4 127 416 80 263 51 167 34 110 22...

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... steel. Diameter Depth mm in. mm in. 5 0-6 4 2-2 61 0-7 62 2 4-3 0 6 5-8 9 2 -3 76 2-1 065 3 0-4 2 9 0-1 15 3 -4 106 5-1 780 4 2-7 0 For holes 116 mm (4 in.) in diameter and larger, maximum ... difficult-to-machine D2, however, speed had to be reduced by about 30% and feed by 50%. The metal removal rate in roughing was only about one-...

Ngày tải lên: 10/08/2014, 13:20