The Effect of Superfinishing on the Contact Fatigue of Case Carburised Gears
The contact fatigue performance of two pairs of case carburised gears with either an as-ground or superfinished surface finish was studied. This comparison test was carried out using a back-to-back gear test rig. Test results showed that superfinished gears provided an enhanced contact fatigue resistance with only the development of minor scratches and light micropitting after running, while as-ground gears failed through a sequence of initial micropitting, progressive micropitting, macropitting and scuffing.
Zeyong Yin, Chengyu Jiang, Datong Qin, Peixin Qiao and Geng Liu
J. Zhang and B. A. Shaw, "The Effect of Superfinishing on the Contact Fatigue of Case Carburised Gears", Applied Mechanics and Materials, Vol. 86, pp. 348-351, 2011