Metal Machining - Theory and Applications 2008 Part 8 pdf

... heating and quenching high strain rate test (after Shirakashi et al. , 1 983 ) Childs Part 2 28: 3:2000 3:15 pm Page 221 2 28 Applications of finite element analysis Fig. 8. 1 continued Childs Part 2 28: 3:2000 ... built-up-edge formation (Usui et al., 1 981 ) and more recently in studies of low alloy semi free -machining steels (Childs and Maekawa, 1990). It is given further...

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... strain rates and temperatures 379 References 381 5 Approximate tool yield and fracture analysis 383 A5.1 Tool yielding 383 A5.2 Tool fracture 385 References 386 6 Tool material properties 387 A6.1 ... Boothroyd and Knight, 1 989 ) Fig. 1.19 The spectrum of manufacturing systems (after Groover and Zimmers, 1 984 ) Childs Part 1 28: 3:2000 2:34 pm Page 18 If Figure 1.16(b) is c...

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... ferrous and non-ferrous chips observed through a microscope at about five times magnification (Figure Fig. 2.1 Early chip observations by (a) Tresca ( 187 8) and (b) Mallock ( 188 1 82 ) Childs Part 1 28: 3:2000 ... that the orga- nizational gains of cell-oriented and FMS organization bring real benefit. 1.4.3 Milling and drilling times and costs Equations (1.7) and (1 .8) for...

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... process in metal cutting. Trans. ASME 81 B, 251–262; and Eggleston, D. M., Herzog, R. and Thomsen, E. G. Trans. ASME 81 B, 263–279. Komanduri, R. and Samanta, S. K. (1 989 ) Ceramics. In: Metals Handbook ... (Ceramics and Glasses). Metals Park, Ohio: ASM. Anon (1994) Modern Metal Cutting – A Practical Handbook. Sandviken: AB Sandvik Coromant. Brookes, K. J. A. (1992) World Direc...

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... 41–44. Williams, J. E, Smart, E. F. and Milner, D. (1970) The metallurgy of machining, Part 1. Metallurgia 81 , 3–10. 1 58 Experimental methods Childs Part 2 28: 3:2000 3:11 pm Page 1 58 strain sensing is much ... between the parts is a slip-line. Thus, in machining, the boundaries between the primary shear zone and the work and chip and between the secondary shear zone and...

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... agreement Non-orthogonal (three-dimensional) machining 195 Fig. 6. 18 The dependence of η c on (a) λ s and (b) r n , for machining a carbon steel (after Usui and Hirota, 19 78) (a) Childs Part 2 28: 3:2000 ... (6.34a) S Non-orthogonal (three-dimensional) machining 189 Childs Part 2 28: 3:2000 3:13 pm Page 189 where D is the area of the element; and similarly for the oth...

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... frequency and Process models 281 Childs Part 3 31:3:2000 10: 38 am Page 281 Vyas, A. and Shaw, M. C. (1999) Mechanics of saw-tooth chip formation in metal cutting. Trans ASME J. Manuf. Sci. and Engng. ... E., Smart, E. F. and Milner, D. (1970) The metallurgy of machining, Part 2. Metallurgia 81 , 51–59. Yamaguchi, K. and Kato, T. (1 980 ) Friction reduction actions of inc...

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... for achieving reliable and improved machin- ing processes, free from fatal damage and trouble (Micheletti et al., 1976; Tlusty and Andrews, 1 983 ; Tonshoff et al., 1 988 ; Dan and Mathew, 1990; Byrne ... workpiece, etc, are measured in-process or out-of-process. In-process monitor- ing that does not require the machining process to be stopped is preferable to out-of- process monito...

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... 2 78 285 . Kobayashi, S., Oh, S-I. and Altan, T. (1 989 ) Metal Forming and the Finite Element Method. New York: Oxford University Press. Kudo, H. (1965) Some new slip-line solutions for two-dimentional ... A1 .8 collects a range of slip-line fields, and their velocity diagrams (due to Lee and Shaffer, 1951, Kudo, 1965, and Dewhurst, 19 78) , which describe steady state chip form...

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... + T) + 58. 4 + a (86 0 – T)e — b ] where, for e — ≤ 0.5 a + 0 .87 , b = 0 .8; e — ≥ 0.5 a = 0.57, b = 0.2 Other forms have been given for a Ti-6Al-4V alloy (Usui et al. 1 984 ) and a Ti-6Al-6V-2Sn alloy ... Temperature [°C] 0 200 400 600 80 0 Iron and steel pure iron* 85 64 50 38 31 0.04–0.25C 52–60 48 54 42–45 35–37 29–30 0.25–0.8C 51–52 46– 48 39–42 33–35 29–30 0 .8 1.2C 45–51 42–46...

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