Effect of beam wobbling on laser welding of aluminum and magnesium alloy with nickel interlayer

被引：51
|
作者：
Shah, L. H. [1 ,2 ]
Khodabakhshi, F. [3 ]
Gerlich, A. [1 ]
机构：
[1] Univ Waterloo, Fac Engn, Dept Mech & Mechatron Engn, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada
[2] Univ Malaysia Pahang, Fac Mech Engn, Pekan 26600, Pahang, Malaysia
[3] Univ Tehran, Coll Engn, Sch Met & Mat Engn, POB 11155-4563, Tehran, Iran
来源：
JOURNAL OF MANUFACTURING PROCESSES | 2019年 / 37卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Aluminum; Magnesium; laser welding; Beam wobbling; Microstructure; Interlayer; AL-ALLOY; MG ALLOY; FORMATION ENTHALPY; MICROSTRUCTURE; TRANSITION; ADHESIVE; AZ31;
D O I：
10.1016/j.jmapro.2018.11.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of conventional laser keyhole welding and beam wobbling was evaluated at two weld travel speeds and power settings. Fracture in linear lap welds would occur during specimen preparation due to the presence of Al-rich brittle fusion zone, unless one utilizes a circular laser wobbling path (at 1000 Hz). Wobbling provided better integrity due to the presence of a Mg-rich ductile fusion zone and a larger bonded width. It can be concluded that laser beam wobbling enhances joint quality by widening the joint area and mitigating formation of brittle secondary phases at the joint fusion zone.
引用
收藏
页码：212 / 219
页数：8
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