Effects of power modulation on behaviours of molten pool and keyhole during laser–arc hybrid welding of pure copper

Modulated laser power hybrid welding (M-HW) of 4 mm-thick T2 pure copper was conducted to improve the welding stability. It was observed that the sinusoidal modulation of laser power in hybrid welding can reduce the incidence of weld defects such as spatters and pores, and decrease the transverse sh...

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Bibliographic Details
Main Authors: Jie Ning, Lin-Jie Zhang, Liang-liang Zhang, Jian Long, Xian-qing Yin, Jian-Xun Zhang, Suck-Joo Na
Format: Article
Language:English
Published: Elsevier 2020-09-01
Series:Materials & Design
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127520303634