钛合金等离子和MIG复合焊接技术研究

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Abstract The plasma and MIG composite welding process of TA2 plate was studied. Through the high-speed photography technology, the morphology of the molten pool was observed under the test parameters. The molten pool is mainly the jet transition and the droplet transition. The microstructure, mechanical properties and technological properties of the joint were tested. The results show that plasma and MIG composite welding joint has no obvious defects in microstructure. Compared with the base metal, the tensile strength of the weld decreases slightly, but it meets the relevant standards of the base metal; process performance is good; compared with the base metal, the effect of weld impact absorption is reduced slightly. The plasma and MIG welding has good prospects for application on TA2.

Key words： plasma and MIG composite welding microstructure mechanical property process performance

Published: 09 December 2021

CLC number:

TG444.2

About author:: Jia Liu, welding engineer of Luoyang Ship Material Research Institute. degree in material forming and control engineering from Chang'an University in Sept. 2009—Jul. 2013. He got master degree in science and engineering from the Xi'an Jiaotong University(XJTU)in Sept. 2013—Jul. 2016. He has been working in Luo-yang Ship Material Research Institute. He has been studying the welding technology and process of titanium alloy.

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	LIU Jia
	XU Jialei
	MA Zhaowei
	LEI Xiaowei
	GAO Qi
	CUI Yongjie

Cite this article:

LIU Jia,XU Jialei,MA Zhaowei, et al. Research on Hybrid Welding Technique Based on Plasma and MIG of Titanium Alloy[J]. Materials Reports, 2021, 35(z2): 358-360.

URL:

http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2021/V35/Iz2/358