Transactions of Materials and Heat Treatment

Title：Study on isothermal forging process of 2024 aluminum alloy precision parts

Authors： Pan Yuejin Wu Yuejiang

Unit： Shanghai Jiaotong University Baosteel Co. Ltd.

KeyWords： isothermal forging precision forging parts aluminum alloy die surface treatment

ClassificationCode：

year,vol(issue):pagenumber：2014,39(1):25-28

Abstract：

The large 2024 aluminum alloy precision part was produced with isothermal forging process by isothermal forging die made by hot die steel H13. The perform was produced from aluminum plate, then it was isothermal forged in 20MN hydraulic press. The temperature of die was (450±10)℃, the temperature of 2024 aluminum alloy perform was (465±10)℃, and the highest forming force was 11000 kN. The isothermal forging experiment shows that the anti-adhesion performance of die can be improved after nitrogen oxide treatment on the forging die. In addition, three types of fillet radius R5, R10 and R15 mm of the isothermal forging tool side plate were tested and compared during the forging process, and the results show that the tool side plate with R15 mm fillet radius can improve the flow ability of the metal and reduce the adhesion between die and perform. Furthermore, two isothermal forging processes were analyzed and the result shows that the gusset can be filled well after performing or big fillet radius made by the first step forging.

Funds：

潘跃进（1982-），男，工程硕士

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