
第42卷第7期 Vol. 42No. 7
钣压技术
FORGING & STAMPING TECHNOLOGY
AZ31B镁合金热渐进成形实验研究
文怀兴,刘桂芳,史鹏涛
(陕西科技大学机电工程学院,陕西西安710021)
2017年7月 Jul.2017
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,1mm厚的板料成形极限为45°-47°,1.5mm厚的板料成形极限为60°-62°。
关键词:渐进成形:油潜加热:AZ31B镁合金;成形极限;加工温度 DOI: 10. 13330/j. issn. 1000-3940. 2017. 07. 011
中图分类号:TG386
文献标识码:A
文章编号:1000-3940(2017)07-0062-04
Experimental studyonhotincrementalformingformagnesiumalloyAz3iB
Wen Huaixing, Liu Guifang, Shi Pengtao
( Mechanical & Electrical Engineering College, Shaanxi University of Science & Technology, Xi'an 710021 , China)
Abstract : In the single point incremental forming, the forming limit is usually represented by the maximum foming 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 forn-ing- 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 C 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.
Key words : incremental forming; oil bath heating; magnesium alloy AZ31B; forming limit ; processing temperature
现代工业发展越来越快,产品更新换代频率也收稿日期:20170304;修订日期:20170510
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,教投 E-mail: 492808529@ qq com
通讯作者:刘桂芳(1994-),女,硕士研究生 E-mail: 787219913@ q com
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万方数据
越来越高,一些元杂的加工方法和陈旧设施逐渐被淘汰,渐进成形这种加工设备简单、无需复杂模具的加工方法应运而生,已被许多学者研究,此项加工技术具有很好的发展前景。但由于技术的不成熟大多学者还是在研究铝及其合金这类在常温下就可以进行完整加工的材料,研究其精度、粗糙度、路径规划、模拟仿真及其应用1]。
对于需要高温处理
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