Metal Machining - Theory and Applications 2008 Part 2 pps
Metal Machining - Theory and Applications 2008 Part 2 pps
... cell-oriented 0.15 0 .27 2. 50 g* insert ceramic centre CNC/15 FMS* 0 .22 0.34 2. 50 Fig. 1 .27 Costs associated with the examples of Figure 1 .26 , a–g as in Table 1.6 Childs Part 1 28 :3 :20 00 2: 35 ... mm 2 [ α n c fd] = 1 mm 2 [ α n c fd] = 0.5 mm 2 V vol [mm 3 ] 960 29 5000 29 5000 f mach 0.65 0.65 0.65 n c fd [mm 2 ]2 4 2 C [m/min] 180 150 180 n 0 .25 0 .25 0 .25 t...
Ngày tải lên: 12/08/2014, 02:22
Metal Machining - Theory and Applications 2008 Part 5 ppsx
... –C 2 . dhC 2 —= C 1 exp [ – —— ] (4.1a) dt q 122 Tool damage Childs Part 1 28 :3 :20 00 2: 41 pm Page 122 5.1 .2 Other chip form and wear observations Careful observation of tools and chips after machining ... turning free-cutting steel B11 12 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 (...
Ngày tải lên: 12/08/2014, 02:22
Metal Machining - Theory and Applications 2008 Part 7 pptx
... cutting process (Part 1). Trans. ASME J. Eng. Ind. 100, 22 2 22 8. Usui, E. and Hirota, A. (1978) Analytical prediction of three dimensional cutting process (Part 2) . Trans. ASME J. Eng. Ind. 100, 22 9 23 5. Usui, ... background 20 1 Childs Part 2 28:3 :20 00 3:14 pm Page 20 1 Kudo, H. (1965) Some new slip-line solutions for two-dimensional steady-state machining. Int. J. Mech....
Ngày tải lên: 12/08/2014, 02:22
Metal Machining - Theory and Applications 2008 Part 10 pptx
... resulphurised free-cutting steels and cast irons. Wear 139, 195 20 8. 26 4 Applications of finite element analysis Childs Part 2 28:3 :20 00 3:19 pm Page 26 4 where g ic– and g i c+ are constants. The ... V 0 .27 ) } (9.2b) × (VB –0.66 – 0 .23 V 0 .27 ) (VN 0.03 – 0 .23 V 0 .27 ) F c = 1862f 0.94 d 1.11 + 26 77(VS 0 .24 – 0.05ln V) ×(VB 0 .23 – 0.05ln V) (VN 0.16 – 0.05ln V)...
Ngày tải lên: 12/08/2014, 02:22
Metal Machining - Theory and Applications 2008 Part 11 potx
... tool (2. 1) power and maximum power: (25 kW, HP) ] (2. 2) torque and maximum torque: (N m, lb. ft) (2. 4) maximum cutting speed: (m/min, ft/min, 1450 rpm) (2. 6) power efficiency: (95%) (3) Machining ... 31:3 :20 00 10:38 am Page 29 3 322 Process selection, improvement and control Fig. 9.37 Effectiveness of pre -machining feed adjustment in controlling dimensional error (Takata...
Ngày tải lên: 12/08/2014, 02:22