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Performance of a Surface Densified P/M Gear for a Passenger Car Gear Box
Rau Gunter,Sigl Lorenz S.,Mork Gerold,Wattenberg Frank 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Selective surface densification is a tool for improving the mechanical properties of PM steels, such that the requirements for highly loaded gears can be matched. This paper describes the manufacturing and the properties of a helical P/M gear. The gear performance was evaluated on a 3-shaft back to back test rig, on a load bearing test rig and on a sound test bench. The results of these tests are presented and compared to data obtained from solid steel gear with identical geometry and surface quality. This comparison indicates that P/M gears have a load bearing capacity and noise level which are both well comparable to solid steel gears.