Transactions of Materials and Heat Treatment

Title：Analysis and research on punching force for turbine outer ring blade groove of hydraulic torque converter

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ClassificationCode：TH69; TG386. 2; TB31

year,vol(issue):pagenumber：2023,48(1):84-89

Abstract：

In order to solve the problem of low machining efficiency of manual punching groove for hydraulic torque converter to improve the section quality and punching efficiency of punching parts, based on the punching groove processing of turbine outer ring blade for YB-265 medium-sized model stamping and welding hydraulic torque converter, the 10F steel with a shell thickness of 3 mm and the same specification was used as the test material for punching of turbine outer ring groove for hydraulic torque converter, the punching groove test was conducted by a rectangular punch with a cross-section of 20 mm×1. 5 mm, and the punching clearance was changed by replacing the die to complete the punching test of turbine outer ring groove under different punching clearance conditions. Furthermore, the changing curves between punching force and punching clearance were collected and fitted to analyze. The results show that the punching force decreases slowly with the increasing of punching clearance, and the formation of fault zone has a certain lag. The bright band decreases slowly and the distribution is relatively uniform, but the burr height increases. By comparing the empirical formula and the test curve, the punching clearance assumed by the empirical formula is about 23. 42%t. Thus, the study result has certain practical significance and promoting effect on the manufacturing technology and application of automobile hydraulic torque converter.

Funds：

2022 年度陕西国防工业职业技术学院科研计划项目(Gfy22-29)

作者简介: 潘文宏(1992-), 男, 硕士, 讲师 E-mail: 1992550881@ qq. com

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