[T11] High Profile Automotive Component Technology

[16C-T11-02] PM Solution for High Performance PM Gear: Surface Densification

*B. Gu¹, Z. Mao², R. Zhao², Z. Chen¹, X. Xu¹, Z. Tan¹, Y. Han¹ (1.Höganäs China Co., Ltd, China, 2.NBTM New Materials Group Co. Ltd., China)

キーワード：PM Gear, Surface Rolling Densification, Durability Test

PM technology is considered as a sustainable way of manufacturing high performance gear. Recently, the electrification trend in global industry requires rather higher performance and tighter tolerance of PM gear than ever. Therefore, a suitable manufacturing process needs to be selected based on the stringent component requirement, reaching near full density in the surface working area. This work presents an investigation on manufacturing, mechanical properties including durability bench test and NVH test of surface rolling densified gears aiming at high performance PM gear. The fatigue strength of standard PM FZG gear made by surface rolling densification exhibits comparable results to common steels. The bench test of surface rolling densified PM intermediate gear in reduction gearbox unit of BEV looks quite promising.