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材料工程  2018, Vol. 46 Issue (5): 44-55    DOI: 10.11868/j.issn.1001-4381.2017.001361
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铝合金局部热处理技术及其在板材成形中的应用发展现状
徐勇1,2, 靳鹏飞1, 田亚强1, 张士宏2, 王礼良3, 曾一畔4
1. 华北理工大学 冶金与能源学院, 河北 唐山 063210;
2. 中国科学院 金属研究所, 沈阳 110016;
3. 英国帝国 理工学院 机械工程系, 伦敦SW7 2AZ;
4. 航空工业 成都飞机工业(集团
Development Status of Tailored Heat Treatment Technology and Its Application on Sheet Metal Forming of Aluminum Alloys
XU Yong1,2, JIN Peng-fei1, TIAN Ya-qiang1, ZHANG Shi-hong2, WANG Li-liang3, ZENG Yi-pan4
1. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, Hebei, China;
2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
3. Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK;
4. AVIC Chengdu Aircraft Industrial (Group) Co., Ltd., Chengdu 610092, China
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摘要 铝合金因具有密度低、比强度高、耐蚀性好、回收再生性好等诸多优点,在航空航天、汽车等领域获得广泛的应用。然而铝合金的室温成形性较差,常依靠加热辅助其成形,不仅增加制造成本,降低生产效率,而且严重降低产品表面质量,从而限制其在复杂结构零部件以及高端制造领域中的应用。而局部热处理技术能够有效制备具有梯度性能分布的铝合金差性板,可以改善板材的变形行为和与模具之间的接触摩擦作用,实现调控成形过程中材料的流动时序,从而提高铝合金的室温成形能力。本文系统论述铝合金局部热处理技术的工艺原理及特点,对材料微观组织和力学性能的影响规律,快速加热的实现方式及优缺点,热处理路径的选取、加热温度和保温时间等关键技术,以及在实际板材成形中的应用。详细介绍局部热处理软化和硬化对铝合金板材强韧化的作用和调控机制,对比分析局部热处理提高铝合金板材成形能力的实际效果,从而加快推进该技术在我国高端铝制品加工行业中的实践和应用。
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徐勇
靳鹏飞
田亚强
张士宏
王礼良
曾一畔
关键词 铝合金局部热处理差性板板材成形成形性能    
Abstract:Aluminum alloys have gained much attention in aerospace, military and automobile applications because of their outstanding properties such as low density, high specific strength, and good damage tolerance compared with the other commercial alloys. However, the formability of aluminum alloy is poor at room temperature, thus a further heating process is necessary to improve its formability and manufacture complex shaped products. On the other hand, this leads to the increase of manufacturing costs and the reduction of production efficiency and poorer surface quality of the product,restricts its application in complex structural components and high-end manufacturing fields. Therefore, the tailored heat treatment technology is used to address the above mentioned issues and significantly improve the formability of aluminum alloys at room temperature. In this paper, the characteristics and technical principles of tailored heat treatment technology for aluminum alloys were discussed. In addition, the influence of the tailored heat on the microstructural evolution and mechanical properties of aluminum alloys, as well as, the means to achieve tailored heat treatment, besides the heat treatment layout and the application in the actual sheet metal forming were systematically reviewed. Furthermore, the main microstructural mechanisms of tailored heat treatment on the softening and hardening behavior of aluminum alloys were introduced. Finally, the real effect of the tailored heat treatment on improving the formability of aluminum alloys sheets was analyzed and compared, in order to promote this novel technology to manufacture high-performance aluminum products in China.
Key wordsaluminum alloy    tailored heat treatment    tailored blank    sheet metal forming    formability
收稿日期: 2017-11-08      出版日期: 2018-05-16
中图分类号:  TG146.2  
通讯作者: 徐勇(1983-),男,博士,副研究员,主要从事高性能轻质合金变形机理及微观组织演变,异形薄壁构件柔性成形新技术和装备的研发应用,以及计算机辅助精确成形仿真技术的研究,E-mail:yxu@imr.ac.cn     E-mail: yxu@imr.ac.cn
引用本文:   
徐勇, 靳鹏飞, 田亚强, 张士宏, 王礼良, 曾一畔. 铝合金局部热处理技术及其在板材成形中的应用发展现状[J]. 材料工程, 2018, 46(5): 44-55.
XU Yong, JIN Peng-fei, TIAN Ya-qiang, ZHANG Shi-hong, WANG Li-liang, ZENG Yi-pan. Development Status of Tailored Heat Treatment Technology and Its Application on Sheet Metal Forming of Aluminum Alloys. Journal of Materials Engineering, 2018, 46(5): 44-55.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2017.001361      或      http://jme.biam.ac.cn/CN/Y2018/V46/I5/44
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