Transactions of Materials and Heat Treatment

Title：Short process of multistep spindle head in cold precision forging

Authors： Liu Baixuan Liu Hua

Unit： Zhengzhou Research Institute of Mechanical Engineering

KeyWords： multistep spindle head short flow cold precision forging high polymer lubricant finite element simulation analysis

ClassificationCode：TG376.3

year,vol(issue):pagenumber：2017,42(6):21-26

Abstract：

For the characteristics of shape size and cold precision forging process of a certain type of multistep spindle head, a cold precision forging process with short flow was worked out by combining different cold forging processes such as extrusion,upsetting and ironing in one step. Then, the process was analyzed and studied by comparing numerical simulation with experimental study, and finally the cold precision forging process with short flow for multistep spindle head with twostep forming and eightstep size was obtained. Furthermore, the high polymer lubricant was used to further shorten the whole process flow from the billet to final forming. Results show that the total numbers of cold forging forming process of multistep spindle head are reduced effectively by a reasonable arrangement on deformation values of every process and combined application of different cold forging processes in one step, and as a result, high efficiency production is achieved with common press. Thus, the simulation results of the Deform3D are consistent with the experimental results, and it shows that the finite element simulation is feasible to predict the forming effect and the pressure size.

Funds：

郑州市重大科技专项（152PZDZX007）

刘百宣（1973-），男，硕士，高级工程师

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