Metal Machining - Theory and Applications 2008 Part 10 pptx

... 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, ... E., Smart, E. F. and Milner, D. (1970) The metallurgy of machining, Part 2. Metallurgia 81, 51–59. Yamaguchi, K. and Kato, T. (1980) Friction reduction actions of i...

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... (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 other strains e yy and g xy . Matrix algebra ... background 201 Childs Part 2 28:3:2000 3:14 pm Page 201 Kudo, H. (1965) Some new slip-line solutions for two-dimensional steady-state machining. Int. J. Mech. Sci. 7, 43–55. Lee...

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... yields the D 3 and D 2 relations derived in the previous paragraph. Machine tool technology 13 Fig. 1.13 A traditional – column and knee – design and (right and below) partly-built and complete ... mechanical engineering of machining: mechanics, heat conduc- tion and tribology (friction, lubrication and wear). Chapters 3 and 4 focus on materials’ performance in machining, Ch...

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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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... turning free-cutting steel B1112 and difficult-to-cut sintered steel and Inconel 718 0.05 0.02 0.1 0.2 0.5 1.0 2.0 5 10 20 40 60 80 99 85 Flank wear VB (mm) P10 Sintered steel P10 B1112 TiC-Al 2 O 3 ... 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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... 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 ... 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 the ch...

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... built-up-edge formation (Usui et al., 1981) and more recently in studies of low alloy semi free -machining steels (Childs and Maekawa, 1990). It is given further consideration in Section 7.3 and ... 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 mu...

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... al ., 1996) Childs Part 3 31:3:2000 10: 40 am Page 314 of tool or workpiece, etc, are measured in-process or out-of-process. In-process monitor- ing that does not require the machining process ... 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 of...

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... for faulty machining states (Takata, 1993) Childs Part 3 31:3:2000 10: 41 am Page 323 Perfectly plastic material in plane strain 339 Fig. A1.8 Metal machining slip-line fields (left) and their ... Oh, S-I. and Altan, T. (1989) Metal Forming and the Finite Element Method. New York: Oxford University Press. Kudo, H. (1965) Some new slip-line solutions for two-dimentional steady...

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... have been given for a Ti-6Al-4V alloy (Usui et al. 1984) and a Ti-6Al-6V-2Sn alloy (Maekawa et al. 1994b). For the Ti-6Al-4V alloy: s — = A(e — ˘ /100 0) M e aT (e — ˘ /100 0) m { c + [ d + ∫ strain ... – 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 superal...

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