Transactions of Materials and Heat Treatment

Title：Semi-precision hot forging blocking and die design of multi-row chain wheel

Authors： Zhao Rihong Chi Chengzhong Wei Chunjuan Cheng Wangjun Liang Wei

Unit： Taiyuan University of Technology

KeyWords： multi-row chain wheel semi-precision hot forging die design hobbing cutting

ClassificationCode：TG316

year,vol(issue):pagenumber：2014,39(6):20-23

Abstract：

Aiming to the weaknesses of traditional machining technology for chain wheel, such as big cutting output, low utilization rate of material, etc., a new technology of semi-precision hot forging blocking of multi-row chain wheel was put forward based on the structure of chain wheel. The key technologies in the process of semi-precision die forging blocking, such as the formation of chain wheel forging figure, size calculation and fixed position in the die of blank, etc., were elaborated, and the design of tooth profile of chain wheel forging was recounted emphatically, meanwhile a set of integral semi-precision hot forging blocking die for chain wheel was designed. The process calculation of precise forging for a three-rows chain wheel shows that the raw material is saved by 32.7% and the cutting volume is reduced by 50.8% with semi-precision die forging blocking and hobbing machining to produce single part.

Funds：

国家自然科学基金资助项目（51274149）

Reference：

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