Transactions of Materials and Heat Treatment

Title：Optimal design on extrusion mold for control cam

Authors： Kuang Yuhua

Unit： Nanjing Institute of Industry Technology

KeyWords： control cam cold upsetting extrusion punch mold life cold extrusion

ClassificationCode：TG316

year,vol(issue):pagenumber：2020,45(6):141-145

Abstract：

The selection of blank type is a crucial factor which determines the quality and performance of part. For the control cam, the product quality issue in the production technology caused by precise casting through semi solid extrusion to produce the control cam was analyzed, and the production technology of cold upsetting for control cam was formulated. Then, for the quality issue emerged during the cold upsetting manufacture of control cam, the extrusion mold of shaping and square hole forming at one time for the control cam was designed, and the reason why the extrusion punch fracture prematurely in use was analyzed. Combined with finite element stress analysis of extrusion punch, the structure of extrusion punch was optimized to improve the stress condition of extrusion punch and its life. The practice shows that the quality of control cam parts produced by optimized extrusion punch is more stable and reliable, and at the same time the production efficiency is improved.

Funds：

2016年度江苏高校科研面上项目（16KJB430033）

匡余华（1962-），男，硕士，教授 E-mail：kuangyh@niit.edu.cn

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