Unformatted text preview: 21.45): t=0.1 mm, width of cut = 5mm, t c =0.2 mm, V c = 2 m/s, rake angle=10 , main cutting force= 500N, thrust cutting force= 200N. Calculate the total percentage of the total energy dissipated in the shear zone. 4. Calculate the shear plane temperature rise during orthogonal machining of mild steel using the following data gathered. Assume that the percentage of heat going to the work =0.1. Cutting data cutting force = 890 N (200 lbf), thrust force = 667 N (150 lbf), cutting speed V= 2 m/s (394 fpm), undeformed chip thickness=0.25 mm (0.0098 in.), width of cut=2.5mm (0.098 in.), cutting ratio = 0.3, rake angle=0 material data for mild steel density= 7200 kg/m 3 (0.26 lb/in 3 ), heat conductivity k= 43.6 W/mK (320.6 Btuin/hrft 2 F), specific heat c= 502 J/KgK (0.12 Btu/lbF)...
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 Fall '10
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 Force, Heat, Shear, Stress, Thrust, Fundamental physics concepts, shear plane

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