汽车轻量化用铝合金拼焊板的研究进展  

Research progress of aluminum tailored welded blanks in automotive lightweight

作　　者：伍杰[1,2] 毛祖莉[2] 任芝兰[2] 

机构地区：[1]湖南工学院工程训练中心,湖南衡阳421002 [2]湖南工学院先进制造技术研究所,湖南衡阳421002

出　　处：《锻压技术》2016年第9期1-6,12,共7页Forging & Stamping Technology

基　　金：湖南省自然科学基金项目资助(2015JJ6029);湖南省教育厅优秀青年基金项目(15B059);湖南省教育厅项目(11C0363);衡阳市科技支撑计划项目(2015KG65)

摘　　要：基于节约能源和减少废气排放的需要,汽车轻量化已经成为世界汽车发展的主流。各种轻量化的技术和方法逐渐发展起来,材料轻量化和结构轻量化是汽车轻量化技术中的两个重要方面。材料轻量化即指使用铝、镁合金等密度更小的材料代替传统的钢铁材料达到减重的目的;而结构轻量化则是采用一些满足使用性能的新结构来实现减重。以铝合金为母材的拼焊板,能够同时满足材料轻量化和结构轻量化的要求,是拼焊板技术未来的发展方向。从焊接方法、成形性能研究、应用的主要障碍、以及未来的发展趋势等方面综述了汽车轻量化用铝合金拼焊板的研究进展。Automotive lightweight has become the mainstream of development in world vehicle with the consideration of energy saving and emission reducing. Many technologies and methods are developed to meet the demand of lightweight,and therefore lightweight materials and lightweight construction are two important aspects of lightweight technology. Lightweight materials demand the utilizing of material with low density,such as magnesium and aluminum alloy,while adopting new structure is an important way of the lightweight construction. Aluminum alloy tailor welded blank can meet the requirements of lightweight construction and lightweight material,and it is the future development direction of tailor welded blank technology. The research progress of aluminum tailor welded blank is summarized from aspects of the welding method,formability,obstacles of application and the future trend,etc.

关 键 词：汽车轻量化 铝合金 拼焊板 焊接方法 成形性能 

分 类 号：U466[机械工程—车辆工程] TG457.14[交通运输工程—载运工具运用工程] TG389[交通运输工程—道路与铁道工程]