Transactions of Materials and Heat Treatment

Title：Process optimization of precision forging for auto transmission spiral bevel gears based on response surface

Authors： Zhao Haibin

Unit： Hebei Jiaotong Vocational & Technical College

KeyWords： spiral bevel gear precision forging response surface model auto transmission

ClassificationCode：

year,vol(issue):pagenumber：2016,41(4):10-13

Abstract：

For the defects of poor forming quality and over load during precision forging of spiral bevel gear, the quadratic polynomial response surface model was built for the spiral bevel gear of an auto transmission, which took the initial forging temperature, friction coefficient and press speed as parameter variables, and the maximum forming load and filling ratio as optimization goals. Combining with numerical simulation and Matlab optimization toolbox，the optimized forming process parameters were obtained as follows: the initial temperature of the billet is 1000 ℃, the friction coefficient is 0.3 and friction press forming speed is 200 mm·s-1. Finally, the feasibility of the model was verified by the process test, and the obtained spiral bevel gear tooth filled well with the equipment forming load meeting the requirements better.

Funds：

2014年度石家庄市高等专科自然科学科研重点资助项目(ZR-201405)

赵海宾（1978-），男，硕士，讲师

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