 # PROBLEM 4.4 # 

 Shear angle = 26.717474, 
 Cutting force = 468.567296 N, 
 Thrust force = 139.374821 N 
 Using Lee and Shaffer relation- 
 Shear angle = 28.434949, 
 Cutting force = 455.482874 N, 
 Thrust force = 135.482874 N, 