Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : February 28, 2017 - March 03, 2017
The gear accuracy is deteriorated due to the heat treatment distortion. To remove this heat treatment distortion of the surface-hardened small gear is rehobbed with a carbide hob. However, the rehobbing makes a tool mark on the gear tooth surface. This tool mark may cause vibration/noise of the gear. Therefore, a tooth surface finishing method for small gears to remove this tool marks is required. However, a gear-shaped grinding tool for small gears is difficult to manufacture because the tooth of one is too small. This study proposes the gear-shaped tool which is manufactured using the alumina-fiber-reinforced plastic (ALFRP), and the removal experiments of tool marks of surface-hardened gear tooth are performed using the ALFRP gear-shaped tool and a new gear tooth surface finishing device with an oscillation/traversal system. It is shown that this proposed new finishing method can remove the tool marks on the gear tooth surface.
