AZ31B镁合金FDS连接工艺与性能分析  

Analysis of FDS connection process and performance of AZ31B magnesium alloy

作　　者：吴磊 唐伟能 黄昌军 WU Lei;TANG Weineng;HUANG Changjun(Technology Center,Baosteel Metal Co.,Ltd.,China Baowu Steel Group Corporation,Shanghai 200940,China)

机构地区：[1]中国宝武钢铁集团宝钢金属有限公司技术中心,上海200940

出　　处：《现代交通与冶金材料》2024年第3期91-94,共4页Modern Transportation and Metallurgical Materials

基　　金：国家重点研发计划资助项目(2021YFB3701100);上海市科技创新项目资助项目(XTCX-KJ-2022-2-11)。

摘　　要：镁合金材料是密排六方结构,常温下可开动的滑移系较少,加工性能较低,容易产生脆性断裂。以AZ31B镁合金挤压板材为例,采用FDS连接工艺进行连接实验,通过优化关键工艺参数如转速、压力、扭矩等,改善连接成形性。参数优化后,连接成形性得到了显著改善,包络面无裂纹,连接剪切强度达到4.9 kN以上。研究了镁合金AZ31B材料FDS连接剪切拉伸过程,分析了两次峰值力的形成原因。Magnesium alloy materials have a close-packed hexagonal structure,with fewer slip systems at room temperature,lower deformation processing performance,and being easier to brittle fracture.Taking AZ31B magnesium alloy extruded sheet as an example,FDS connection process is used for connection experiments.By optimizing key process parameters such as speed,pressure,torque,etc.,the formability of FDS connection is improved.After parameter optimization,the formability of the connection is significantly improved,with no cracks on the envelope surface and the shear strength achieved 4.9KN.The shear tensile process of magnesium alloy AZ31B material FDS connection is studied,and the reasons for the formation of two peak forces are analyzed.

关 键 词：镁合金 连接 FDS工艺 力学性能 

分 类 号：TG146.22[一般工业技术—材料科学与工程] TG457.19[金属学及工艺—金属材料]