Metal Machining - Theory and Applications 2008 Part 13 pot

... 0.57, b = 0.2 Other forms 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 — ˘ /1000) M e aT (e — ˘ /1000) m { c ... the elements of the nodal F-vector depend on the heat generation and loss quanti- ties q*, q and h, and the elements of [H] e depend mainly on the conduction and convec- tion...

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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 ... machine Childs Part 1 28:3:2000 2:34 pm Page 13 appropriate for different mixes of part variety and quantity (Figure 1.19). If a manufac- turer’s spectrum of parts is of the o...

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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 chi...

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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 ... detailed and reli- able recognition of cutting states in the future. 9.5 Model-based systems for simulation and control of machining processes In this final section, the application of mac...

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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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... Glasses). Metals Park, Ohio: ASM. Anon (1994) Modern Metal Cutting – A Practical Handbook. Sandviken: AB Sandvik Coromant. Brookes, K. J. A. (1992) World Directory and Handbook of Hardmetals and Hard ... 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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... (6.34a) 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 ... r n d θθ 2 θ 4 A θ t 1e, θ 3–4 ⎛ ⎜ ⎝ ⎛ ⎜ ⎝ ⎞ ⎟ ⎠ ⎞ ⎟ ⎠ ⎛ ⎜ ⎝ ⎛ ⎜ ⎝ ⎞ ⎟ ⎠ ⎞ ⎟ ⎠ ⎛ ⎜ ⎝ ⎛ ⎜ ⎝ ⎞ ⎟ ⎠ ⎞ ⎟ ⎠ Childs Part 2 28:3:2000 3 :13 pm Page 192 Non-orthogonal (three-dimensio...

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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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... 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, ... F f , and F c are values in N; V, f and d are in m/min, mm/rev and mm, respec- tively; and the dimensions of flank wear VB (Chapter 4), notch wear VN and nose we...

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... 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 state machining. ... 43–55. Johnson, W. and Mellor, P. B. (1973) Engineering Plasticity. London: van Nostrand. Johnson, W., Sowerby, R. and Venter, R. D. (1982) Plane-Strain Slip-Line Fields for Metal-...

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