电子束焊接2A14铝合金束流参数与焊接速度对焊缝形貌的影响  

Effect of Beam Scan Parameters and Speed on Weld in Electron Beam Welding High Strength 2A14 Al Alloy

作　　者：王亚荣[1] 余洋[1] 滕文华[1] 

机构地区：[1]中国工程物理研究院机械制造工艺研究所,四川绵阳621900

出　　处：《热加工工艺》2016年第17期59-61,65,共4页Hot Working Technology

摘　　要：基于正交试验分析方法研究了电子束焊接2A14高强铝合金时不同的电子束扫描参数(扫描图形、图形尺寸、焦点位置和扫描频率)与焊接速度对焊缝形貌(熔深和熔宽)的影响。发现获得最大熔深的电子束扫描参数组合为:扫描图形为直线,扫描图形尺寸为0.3 mm×0.15 mm,束流焊接时的焦点位置为0 m A的聚焦焊接,扫描频率1500 Hz,焊接速度为1000 mm/min。分析结果表明:考核指标中的焊缝熔深对于焊接参数的变化比焊缝宽度更为敏感,变化更大;焊接焦点位置和焊接速度对焊缝形貌的影响最为显著。Based on the orthogonal test and analysis method, the influence of electron beam scan parameters （scanning graph, graph size, focal location and scanning frequency） and welding speed on the weld penetration and weld width in electron beam welding high strength 2A14 A1 alloy was studied. The optimum parameters to gain the deepest weld penetration are as follows： scanning graph is line, graph size is 0.3 mm×0.15 mm, focal location is 0 mA, scanning frequency is 1500 Hz and welding speed is 1000 mm/min. The results shows that the penetration of the weld is more sensitive to variation of electron beam scan parameters than the width of weld. The focal location and the welding speed are the important factors which have more significant effects on the weld.

关 键 词：电子束焊接 高强铝合金 正交试验 焊缝熔深 

分 类 号：TG456.3[金属学及工艺—焊接]