Transactions of Materials and Heat Treatment

Title：Process analysis and practice on internal high pressure bulging of slide fork for transmission shaft

Authors： Ruan Zonglong Zheng Yingjun

Unit： Guangdong Sihao Hydroforming Technology Co. Ltd. Taicang Jiuxin Precision Tooling Corp.

KeyWords： slide fork internal high pressure bulging bulging ratio sealing water allowance blanking size

ClassificationCode：TG394

year,vol(issue):pagenumber：2018,43(4):89-93

Abstract：

The traditional die forging process of slide fork for transmission shaft has some disadvantages, such as low material utilization rate and complex process. Based on analyzing the structure features of slide fork, the internal high pressure bulging was presented, and the internal high pressure bulging process of slide fork was obtained. First, the process analysis and calculation were conducted, and then the internal high pressure die was designed and manufactured according to the calculation results. Furthermore, the experimental verification was carried out by the self-made internal high pressure hydraulic press. The results show that the slide fork forging can be obtained by internal high pressure bulging for twice, and the material utilization and quality of forgings can be greatly improved. By optimizing the internal high pressure bulging process parameters of bulging times, blanking size, bulging ratio and sealing water allowance, the surface quality of slide fork is good, which meets the requirements of application and has better feasibility. With high utilization rate of material and lower cost, this method is more in line with the needs of environmental protection and energy saving and has a broad market prospect.

Funds：

广东省科技计划项目（2013B011201286）

阮宗龙（1975-），男，学士，工程师；E-mail：751184579@qq.com

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