Question

6. Given orthogonal cutting, a = -5 degree , t=0.2mm .r = 0.4, w = 4mm Find a. tc, b. 0 C. B d. e. 8 7. Given orthogonal cutting, a = 20 degree , S =50,000 lb/in2, t0 =0.015 inch, v= 100 ft/min, w = 0.15 in, r = 0.5. Find a. 0, b. Fs, C. Fc, and Ft. d. F 8. Given the same as the previous problem except a = 20 degree andr =0.35 Find a. 0, b. Fs, C. Fc, and Ft. d. F 9. Given turning at v= 300 ft/min, f= 2 mm/rev, d=0.1 in, a = 10 degree, andr = 0.42, S= 40,000 lb/in 2 Find a. 0, b. Fs, C. Fc, and Ff 10 Given turning at v= 3.0 m/s, f=.010 in/rev, d=3.0 mm, a = 7 degree, and r = 0.5, S= 250 MPa Find a. 0, b. Fs, C. Fc, and Ft

6. Given orthogonal cutting, a = -5 degree , t=0.2mm .r = 0.4, w = 4mm Find a. tc, b. 0 C. B d. e. 8 7. Given orthogonal cutting, a = 20 degree , S =50,000 lb/in2, t0 =0.015 inch, v= 100 ft/min, w = 0.15 in, r = 0.5. Find a. 0, b. Fs, C. Fc, and Ft. d. F 8. Given the same as the previous problem except a = 20 degree andr =0.35 Find a. 0, b. Fs, C. Fc, and Ft. d. F 9. Given turning at v= 300 ft/min, f= 2 mm/rev, d=0.1 in, a = 10 degree, andr = 0.42, S= 40,000 lb/in 2 Find a. 0, b. Fs, C. Fc, and Ff 10 Given turning at v= 3.0 m/s, f=.010 in/rev, d=3.0 mm, a = 7 degree, and r = 0.5, S= 250 MPa Find a. 0, b. Fs, C. Fc, and Ft

Answer 1

Given clata for Orthogonal Cutting Rake angle a-- 50 Uncut chip thickness to = 0.2 mm Cutting Ratio r = 04 width of Cuit u = Umba @_ Calculations of Chib thicknelt (C) We know that = to lncut chip Huckness chip thickness to 0.4 = 0.2 tc- 012 = 0.5 Chip thickness.HC = 0.5 mm ] Aby (6) Calcution of Shear Angle ☺ tand = a coja (Formular) 1-2 sina = 0.46 (-5°) 1- 0.4 Sin (-5°) = 0.3985 1-(-0.0349) tuno = 0-3851 4 = 21.06 An (c) Calculations of Friction Angle we know for orthogonal cutting 20+ -2- 900 2x21-06+-1-5) - 90° B=90-47-12 - 42-88° B> 42-88 An. (a) Calculations of co-efficientof F We know formular MetanB = tan (42.889 u=0.929 Ant (e) Calculations of Shear Strain Rate v V= tan (0-2) + Cat & etan (21.06-1-5)] + Cot (21:00) = 0.489 +2.6 hon" V= 3.089) And