纵向变形动态过程试验研究  

Experimental Study on Dynamic Process in Longitudinal Deformation

作　　者：宋英杰[1] 杨广臣[1] 崔盟军[1] 

机构地区：[1]承德石油高等专科学校机械系,河北承德067000

出　　处：《热加工工艺》2016年第1期221-222,225,共3页Hot Working Technology

摘　　要：对2A12铝合金的焊接纵向变形动态过程进行数据采集,得到了不同试件长度尺寸条件下纵向变形量与时间的关系曲线,并进行了分析。结果表明:纵向变形的动态过程具有一定的规律;残余纵向变形是焊接过程中瞬时纵向变形增量不断累加的结果;焊接过程中,不同阶段的瞬时纵向变形增量对纵向变形的贡献不同。The data of dynamic process of welding of 2A12 aluminum alloy in longitudinal distortion was collected. The relation curves of longitudinal distortion vs time under different length sizes were analyzed. The results show that the dynamic process of welding in the longitudinal deformation has rules. The longitudinal contraction deformation is the cumulative results of instantaneous increment of longitudinal distortion. In the process of welding, the instantaneous longitudinal deformation increment effects on longitudinal deformation are different.

关 键 词：2A12铝合金 纵向变形 动态过程 

分 类 号：TG404[金属学及工艺—焊接]