Transactions of Materials and Heat Treatment

Title：Influence of forming parameters on temperature and surface quality for AZ31B magnesium alloy sheet during incremental forming

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ClassificationCode：TG381

year,vol(issue):pagenumber：2020,45(1):47-54

Abstract：

The principle of frictional heat incremental forming for magnesium alloy was introduced, and the influences of spindle rotating speed of tool head (1000-6000 r·min-1), axial feeding amount (0.5-3 mm), forming angle, tool head radius and ambient temperature on the formability of cone table part for magnesium alloy sheet with thickness of 2 mm were studied under the tool head moving speed of 1000 mm·min-1. Experimental results show with the increasing of the spindle rotating speed, the surface quality of parts rises first and then decreases, and the surface quality of parts decreases with the increasing of the axial feeding amount. Within the forming limit angle, the surface quality of parts increases with the increasing of the forming angle, and with the increasing of the tool head radius, the surface quality of parts increases first and then decreases. However, the ambient temperature during processing has an influence on the forming result. Furthermore, when the AZ31B magnesium alloy sheet is heated by frictional heat generation, the temperature of sheet increases with the increasings of the spindle rotating speed, axial feeding amount and tool head radius, and the forming angle has little effect on the temperature of sheet.

Funds：

国家自然科学基金资助项目（51465038）；南昌大学2019年科研训练项目(镁合金摩擦热渐进成形变形特征和成形能力研究；镁合金摩擦热渐进成形表面粗糙度的实验研究和优化)

作者简介：王嘉豪(1996-)，男，硕士研究生 E-mail：15839628631@163.com 通讯作者：周六如(1963-)，男，博士，副教授 E-mail：zlrhust@163.com

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