锻压技术

AZ31B镁合金热渐进成形实验研究

英文标题：Experimental study on hot incremental forming for magnesium alloy AZ31B

作者：文怀兴刘桂芳史鹏涛

单位：陕西科技大学

分类号：TG386

出版年,卷(期):页码：2017,42(7):62-65

摘要：

摘要：单点渐进成形中通常用最大成形角来表示成形极限，对于研究尚少的热渐进成形，研究其成形极限能够对后期该材料的相关实验研究有借鉴作用。提出一种以油浴方式对AZ31B镁合金板料进行加热处理，并以此辅助的热渐进成形实验，用升高温度梯度的方式探索了合适的加工温度，并在该温度下研究不同板料厚度下的成形极限。结果表明：在介质油温度为200 ℃ 左右时，板料的加工性能良好，可以进行渐进成形实验，成形件完整且无明显缺陷；在此温度下，1 mm厚的板料成形极限为45°~47°，1.5 mm厚的板料成形极限为60°~62°。

In the single point incremental forming, the forming limit is usually represented by the maximum forming angle, and the study on the forming limit can be used as a reference for the experimental research of the material in the late stage for the hot incremental forming. A method of heating magnesium alloy AZ31B sheet by oil bath was proposed, and the hot incremental forming experiment was carried out. Then, the suitable processing temperature was explored by increasing the temperature gradient, and the forming limits of different sheet thicknesses at the suitable processing temperature were obtained. The results show that the incremental forming experiment with good results can be finished under about 200 ℃ in the oil medium. Finally, the forming limit of 1.5 mm thickness sheet is 60°-62°, but 45°-47° for that of 1 mm thickness sheet at the suitable temperature.

基金项目：

陕西科技大学科研启动基金项目（BJ10-07）

作者简介：文怀兴（1957-），男，博士，教授，E-mail：492808529@qq.com；通讯作者：刘桂芳（1994-），女，硕士研究生，E-mail：787219913@qq.com

参考文献：

[1]张伟,朱虎,杨忠凤. 金属板材单点渐进成形技术的研究进展[J]. 工具技术, 2009, 43 (5):8-12.

Zhang W, Zhu H, Yang Z F. Progress in study of sheet metal single point incremental forming[J]. Tool Engineering, 2009, 43(5):8-12.

[2]Jingee Park, Jeounghan Kim, Nhokwang Park, et al. Study of forming limit for rotational incremental sheet forming of magnesium alloy sheet[J]. Mentallurgical and Materials Transactions A, 2010,41(1):97-105.

[3]Duflou J R, Verbert J, Belkassem B, et al. Process window enhancement for single point incremental forming through multi-step toolpaths[J]. CIRP Annals - Manufacturing Technology, 2008, 57(1):253-256.

[4]冯甜甜,张青来,肖富贵,等. 镁合金板料数控热渐进成形时的摩擦和润滑性能[J]. 中国有色金属学报, 2012, 22(1): 45-52.

Feng T T, Zhang Q L, Xiao F G, et al. Friction and lubrication performances of magnesium alloy sheet in numerically controlled hot incremental forming[J]. The Chinese Journal of Nonferrous Metals, 2012, 22(1):45-52.

[5]张国新. 镁合金板热渐进成形加热装置的研制[J]. 制造技术与机床, 2015, (8):158-160.

Zhang G X. Development of a heating equipment for the heat-incremental forming of magnesium alloy sheets[J]. Manufacturing Technology & Machine Tool, 2015, (8): 158-160.

[6]鲍文科. AZ31B镁合金板材电致塑性渐进成形研究[D]. 济南：山东大学,2016.

Bao W K. Research on Electro-plastic Incremental Forming of AZ31B Magnesium Alloy Sheet[D]. Ji′nan：Shandong University,2016.

[7]周六如,郑志强,罗忠民. 工具转速对AZ31B镁合金圆锥盒摩擦热渐进成形板料温度及成形能力的影响[J]. 锻压技术, 2016, 41(9):31-34.

Zhou L R, Zheng Z Q, Luo Z M. Influence of tool speed on sheet temperature and formability of magnesium alloy AZ31B cone box in frictional heat increamental forming[J]. Forging & Stamping Technology, 2016, 41(9):31-34.

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