Transactions of Materials and Heat Treatment

Title：High efficiency forming method of automobile starter gear

Authors： MENG Ling xian 1 SONG Xue jin 1 ZHANG Yuan guo 1 WANG De jun 2 LIU Jie 2 (1Zhengzhou Research Institute of Mechanical Engineering Zhengzhou He'nan 450052 China 2Hebi Vocational Technical Colloge Hebi Henan 458000 China)

Unit：

KeyWords： chipless forming Automobile starter gear Extrusion forming

ClassificationCode：TG376

year,vol(issue):pagenumber：2005,30(1):13-15

Abstract：

In the paper,an extrusion forming of automobile starter gear is introduced,which could not be machined and is also difficult to be formed by plastic formingThe gear is an involute small module gear with addendum modification, and internal surface of the gear is of complex shape with five pelatsMeeting the needs of markets and improving comprehensive function of automobiles, the high efficiency precision forming technology and process method of single step chipless-forming for internal surface and external gear tooth is put forward based on analysis,study and repeated testsAt the same time, a set of high accuracy dies with simple novel structure and long service life is designed and manufacturedBased on producing the complex shape gear, the advantage of the method has been verified which are of high material utilization ratio and production efficiency as well as high accuracyThe social and economical efficiency is remarkableFor this reason, the method is profitable reference for producing the same type of complex shape gear

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Reference：

[1]　杨长顺.冷挤压工艺实践[M].北京:国防工业出版社.1984.
[2]　洪深泽.冷挤压工艺及模具设计[M].合肥:安徽科学技术出版社.1985.
[3]　孟令先,等.摩托车超越齿轮冷挤压工艺研究[C].北京:第三届全国青年学术年会议.1998.

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