Parameter optimization and design of combined die for hot precision forging process of synchronizer ring
Aiming at the problems of low material utilization ratio and short service life of hot precision forging of a synchronizer ring,the finite element model for the hot precision forging process of synchronizer ring was constructed to analyze the plastic flow law of the metal and the changes of each physical quantity in the process of hot precision forging.Secondly,the response surface method and grey wolf op-timization algorithm were used to optimize the workpiece size of synchronizer ring,initial forging temperature and forming speed to avoid forming defects,improve the material utilization and reduce the maximum forming load.The numerical simulation and process experiments were carried out to verify the results.Finally,the combined die structure of synchronizer ring hot precision forging was designed.The in-terference of the combined die was optimized by numerical simulation,and the maximum principal stress in the dangerous area of the die was reduced to 945 MPa,the stress concentration phenomenon of the die was improved and the early failure of the die was effectively avoid.
synchronizer ringhot precision forgingprocess parameter optimizationdesign of combined die
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