Transactions of Materials and Heat Treatment

Title：Design of automobile engine cover hem die with rotary pressing mechanism

Authors： He Pengshen Chen Shitao Liu Chunyu Li Hui

Unit： Anhui Jianghuai Automobile Co. Ltd.

KeyWords： engine cover hemming die rotary pressing mechanism external ridge

ClassificationCode：

year,vol(issue):pagenumber：2015,40(4):110-115

Abstract：

After analyzing the hemming process of the engine cover，a hemming process with rotating pressing mechanism for car engine cover and its structure design of corresponding hemming die were introduced. The structure of the engine cover hemming die，rotary pressing mechanism and its working principle were emphasized．The pressing along the normal direction was realized by pressing the insert blocks. Therefore，the smooth external ridge in the steep area，the uniformity in overlap gap of each part and the consistency of surface quality after hemming were guaranteed. The deformation of part caused by the force that is parallel to the direction of hemming surface during pressing, and impacts on the external ridge and surface of associated parts in pressing and hemming were avoided. As a result, the pressing quality was improved. It is proved in actual production that the hemming process of engine cover and the design of rotary pressing mechanism can enhance the quality in appearance and its production efficiency.

Funds：

何鹏申（1987-），男，学士，助理工程师

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