摘要
多束流电子束焊是一种能够同时产生多个电子束流作为焊接热源的电子束焊接新技术,能够有效的减小焊接应力和变形。为了减小Ti6Al4V钛合金薄板焊接变形,提出了一种新型的多束流电子束焊接技术,除了熔化金属的主束流外,还包括2个对称分布的辅助束流用来焊后加热。分别用传统电子束焊和多束流电子束焊对1 mm厚的Ti6Al4V钛合金薄板进行焊接试验,试验表明,通过调节2个辅助束流的位置和能量分布,多束流电子束焊能够有效减小钛合金薄板的焊接变形。
Multi-beam electron beam welding（EBW） is a new technique that allows more than two electron beams running simultaneously for welding and it is considered a promising method to reduce welding stress and deformation. In order to reduce the deformation of Ti_6Al_4 V alloy sheets,a novel multi-beam EBW method was proposed in this research,including two additional electron beams to post-heat the weld,besides one main electron beam to melt metals. Experiments were conducted on Ti_6Al_4 V alloy sheets using this multi-beam technique. Results show that compared with the conventional EBW,the multi-beam EBW can improve the welding thermal cycle and effectively reduce the welding deformation by adjusting the position and energy distribution of two additional electron beams.
作者
范霁康
张伟
齐铂金
刘方军
Fan Jikang Zhang Wei Qi Bojin Liu Fangjun(Beihang University, Beijing 100191, China)
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2017年第9期2417-2422,共6页
Rare Metal Materials and Engineering
基金
Aeronautical Science Foundation of China(2014ZE51057)
作者简介
范霁康，男，1988年生，博士生，北京航空航天大学机械工程及自动化学院，北京100191，电话：010-82338416，E-mail：fanjk@buaa．edu．cn
