Fatigue Analysis of High-Density High-Performance Powder Metallurgy (HPM) Spur Gears

Based on previous research data, the High-Density High-Performance Powder Metallurgy (HPM) process has proven to effectively enhance material overall density and mechanical strength at a relatively low processing cost. This study extends previous research by further exploring the fatigue resistance of HPM gears. The experiment will focus on dynamic testing of spur gears with involute teeth using a dynamic testing system. Finite Element Method (FEA) analysis will be employed for supplementary simulation calculations to evaluate the fatigue resistance of pinions manufactured under different processes and to design reasonable parameters. The study primarily compares the fatigue properties among Powder Metallurgy (PM), High-Density High-Performance Powder Metallurgy (HPM), and hobbing gears, analyzing and discussing the test results based on F-N curves.