Metal Machining - Theory and Applications 2008 Part 6 pot

... the EMF generated. Standard material combinations are copper-constantan (60 %Cu–40%Ni), chromel (10%Cr–90%Ni)–alumel (2%Al–90%Ni-Si-Mn) and platinum–rhodium. In metal machining applications, it is possible ... 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 the chip are s...

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... 251 8.5 Summary 262 References 262 9 Process selection, improvement and control 265 9.1 Introduction 265 9.2 Process models 267 9.3 Optimization of machining conditions and expert system applications ... mechanics 159 6. 1 Introduction 159 6. 2 Slip-line field modelling 159 6. 3 Introducing variable flow stress behaviour 168 6. 4 Non-orthogonal (three-dimensional) machining...

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... 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 monitoring, other things ... flank, notch and nose wear (VB, VN and VS) and operation variables to current forces. The levels of VB, VN and VS, V, f and d were the inputs and F d , F f and F c were outputs...

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... – α , α – β , β alloys 5.5–8 8–12 10–17 12.5–21 15–25 Ti-6Al-4V 6. 6 6. 8 8.5–9.1 10.5–12.5 13– 16 16 19 *: high and commercial purity; **: including cobalt- and ferrous-base superalloys. Table A4.2 Heat capacity ... + 58.4 + a( 860 – 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. 1984) and a...

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... 15 15 15 Fig. 1.28 Times and costs to remove metal by milling, for the conditions i and ii of Table 1.7 compared with remov- ing the same metal by turning (- - -) Childs Part 1 28:3:2000 2:35 pm ... 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 machi...

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... 81B, 263 –279. Komanduri, R. and Samanta, S. K. (1989) Ceramics. In: Metals Handbook 9th edn. Vol. 16 (Machining) . Metals Park, Ohio: ASM. Sata, T. (1 968 ) Machinability of calcium-deoxidised steels. ... removal. Naerheim and Trent (1977) have proposed that the wear rates of both WC-Co (K-grade) and WC-(Ti,Ta,W)C-Co (P-grade) cemented carbides are controlled by the rate of diffusion...

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... 6. 18 (a) Fig. 6. 18 continued (b) Childs Part 2 28:3:2000 3:13 pm Page 1 96 Evaluating A sh : the result Substitution of equations (6. 35), (6. 36) and (6. 37) with (6. 39) into equation (6. 34b) and performing ... equation (6. 41), using Tables 6. 1 and 6. 2 as appropriate; A uf is determined from tool geometry, feed and depth of cut by equations (6. 46) and (6. 45). Thus,...

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... alloy steel (the 0.36C-Cr-Mo-Ni material of Table A4.4). The Hopkinson bar equipment has established different laws for non-ferrous face centred cubic metals such as aluminium and a-brass. A much ... 40(1), 61 64 . Ueda, K., Manabe, K. and Nozaki, S. (19 96) Rigid-plastic FEM of three-dimensional cutting mech- anism (2nd report) – simulation of plain milling process. J. Japan Soc. Prec....

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... for design and control of machining processes: (a) CAD assisted milling process simu- lator and planner (Spence and Altintas, 1994) and (b) machining- scenario assisted intelligent machining system (Takata, ... J., Llewellyn, D. T. and Keane, D. M. (19 76) Control of machinability in medium-carbon steels. Metals Technol. 3(5 /6) , 254–271. Obikawa, T. and Usui, E. (19 96) Com...

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... 120, 807–8 16. Obikawa, T. and Matsumura, T. (1994) Visualization, adaptation and optimization of machining technology. J. Japan Soc. Prec. Eng. 60 , 64 1 64 6. Obikawa, T., Liu, W. N. and Shirakashi, ... Oh, S-I. and Altan, T. (1989) Metal Forming and the Finite Element Method. New York: Oxford University Press. Kudo, H. (1 965 ) Some new slip-line solutions for two-dimentio...

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