21.10.2004 Pressing & Sintering

Root and Contact Stress Calculations in Surface Densified PM Gears

Powder metallurgy a.k.a PM in combination with surface densification by radial cold rolling is a competitive manufacturing method for high performance gears compared to producing gears by turning, hobbing and shaving. This paper aims to give a deeper understanding regarding density and stress distribution in a surface densified and case hardened PM gear tooth. The results from the calculations are presented and the design aspect of surface densified components will be discussed.