The purpose of this study is to clarify the effect of EB (Elastic Blasting) grinding on the friction loss of meshing and the friction coefficient of tooth flanks. Therefore, experiments were conducted to compare EB gears and ground gears. As a result, it was confirmed that the surface roughness of the EB gear was smaller than that of the ground gear. However, surface degradation was observed after the experiment, suggesting that the tooth surface may have been roughened due to a problem in the treatment process and increased frequency of direct contact with the tooth surface during low-speed rotation. The results showed that at low rotational speeds with a thin oil film, there was no significant difference between the ground gear and the gear with a thin oil film in terms of the friction loss rate of meshing and the tooth surface friction coefficient. However, at high rotational speeds with a thick oil film, both were found to decrease.
SUZUKI et al. (Wed,) studied this question.