Drive Shaft requires high strength characteristics for safety reasons. The safety of the Drive Shaft is usually judged on the basis of the fracture strength to prevent the breakage of the Drive Shaft during operation, but the yield strength should als...
Drive Shaft requires high strength characteristics for safety reasons. The safety of the Drive Shaft is usually judged on the basis of the fracture strength to prevent the breakage of the Drive Shaft during operation, but the yield strength should also be taken into account. If the input torque greater than yield strength is repeatedly applied to the Drive Shaft, plastic deformation occurs in the bar shaft, which deteriorates fatigue durability. In this study, the application of tempering heat treatment is selected as a method of improving the yield strength. We analyze the tendency of strength according to tempering heat treatment conditions and optimize the conditions for maximum yield strength and fracture strength by using DOE (Design Of Experiments)