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Abstract：
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D rigid-plastic FEM is used to simulate a two-stage precision forging process of spur gears according to the inside divided flow method in this paper. The two kinds of spur gear forging process are simulated. Comparisons are made between the simulation results to find the better forging process. From the simulation results, it is ascertained that insufficient forming is taking at the top of the part using the process with the lower pin. The modified process with upper and lower pins controls the material flow effectively and the tooth cavity was filled successfully. It has been shown that finite element simulation can improve the forging process design level greatly.
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Funds：
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山东省自然科学基金重点项目 (Z2 0 0 0A0 1 )
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AuthorIntro：
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Reference：
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1 陈泽中等直齿圆柱齿轮精锻技术的研究进展金属成形工艺,1999(5):1～2
2 JChoi,HYCho,CYJoAnupper boundanalysisfortheforgingofspurgearsJournalofMaterialsProcessingTechnology,2000,104(1～2):67～73
3 JWalters,WTWu,AArvind,GJLi,DLambert,JTangRecentdevelopmentofprocesssimulationforindustrialapplicationJournalofMaterialsProcessingTechnology,2000,98(2):205～211
4 KKondo,KOhgaDevelopmentofprecisioncolddieforgingprocessutilizingdividedflowJournalofJSTP ,1986,27(1):121～131
5 JCChoi,YChoi,PrecisionforgingofspurgearswithinsidereliefInternationalJournalofMachineTools&Manufacture1999,39(10):1575～1588
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