Effects of rim thickness and standard pressure angle on residual stress of case-hardened internal spur gear.

Abstract

This paper presents a study on the residual stresses of case-hardened internal spur gears with various rim thicknesses and standard pressure angles. A heat conduction analysis of the temperature and an elastic-plastic analysis of the stress in a cooling process for the case-hardened internal spur gear are carried out by finite element method (FEM). The effects of the case depth, the rim thickness and the standard pressure angle on the residual stress are examined. The optimum case depth for the residual stress is also clarified.