Transactions of Materials and Heat Treatment

Title：Research on precision forging process for pre-forging combined gear

Authors： Wang Li

Unit： Shanghai Automobile Gear Works

KeyWords： combined gear pre-forging part precision forging numerical simulation

ClassificationCode：

year,vol(issue):pagenumber：2015,40(4):9-13

Abstract：

The precision forging process of combined gear in auto gearbox is a relatively new manufacturing process for auto components. The pre-forging process of combined gear was simulated by numerical simulation software in order to research the influences of positioning groove on the filling of gear teeth and fold of metal. Through optimizing the key parameters of pre-forging die, the forging load of the final forging decreased from 28546 kN to 21883 kN. Consequently, some hot forging experiments of combined gear were carried out, experimental results show that the gear teeth with good filling condition and little folding defects is obtained by the optimized process parameters, and there is a good agreement between the experimental and simulation results. The possibility to put the new process into practice is proved.

Funds：

王黎（1971-），女，本科，工程师

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