Precise design of the tooth profiles of compaction molds for powder metallurgy
gears
YE Hanlong1，2，CHENG Jigui1，3，CHEN Pengqi1，3
1School of Materials Science and Engineering，Hefei University of Technology，Hefei 230009，China；
2Hangzhou Yitong New Material Co.，Ltd.，Hangzhou 311613，China；3Research Center of Powder
metallurgy Engineering and Technology of Anhui Province，Hefei 230009，China
Abstract：The design error values of severd design methods according to the design formula of PM cylindrical
compaction mold was calculated，and tried to reduce the errors by combining the different design methods. At last
an optimized design method with no（zero）design error was obtained. This paper realized the precise design of the
tooth profiles of powder metallurgy gear molds，and provided a feasible method for the precise design of PM gear
formation mold.
2021, Vol. 31 
