A Study of Arc Length in Pulsed GTAW of Aluminum Alloy by Means of Arc Plasma Spectrum Analysis

2011 ◽  
pp. 219-227
Author(s):  
Huanwei Yu ◽  
Shanben Chen
Keyword(s):  
Aluminum Alloy ◽  
Spectrum Analysis ◽  
Arc Plasma ◽  
Arc Length ◽  
Pulsed Gtaw ◽  
Plasma Spectrum

Effect of ER5356 Welding Wire on Microstructure and Mechanical Properties of 5083 Aluminum Alloy GTAW Welded Joint

2021 ◽  
pp. 1-9
Author(s):  
DongSheng Zhao ◽  
TianFei Zhang ◽  
LeLe Kong ◽  
DaiFa Long ◽  
YuJun Liu
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Aluminum Alloy ◽  
Welded Joint ◽  
Welding Current ◽  
Travel Speed ◽  
Arc Length ◽  
Welding Wire ◽  
Fracture Elongation ◽  
5083 Aluminum Alloy

Automatic gas tungsten arc welding experiments of 5083 aluminum alloy were completed, to analyze the weld microstructure and mechanical properties. The influences of welding current, travel speed, frequency, and arc length on weld forming and mechanical properties were studied. When the welding current was 160 A, the travel speed was 380 mm/min, the frequency was 100 Hz, the arc length was 4 mm, and the maximum tensile strength of the welded joint was 296.9 MPa, which was 86.8% of the base metal’s tensile strength. The fracture elongation was 7.8%. No porosity was formed in the weld, but there were poor fusion problems. ER5356 welding wire can improve the problem of poor weld fusion and accommodate Mg element vaporization losses. When the wire feeding speed was 1200 mm/min, the tensile strength of the welded joint can be improved to 315.2 MPa, which was 92.2% of the base material’s tensile strength, and the fracture elongation was 8.5%. The tensile specimens fractured in the heat-affected zone. The fracture surface was characterized as plastic fracture.

Plasma spectrum analysis of monocrystalline silicon irradiated by pulsed laser

2010 ◽  
Vol 22 (8) ◽  
pp. 1815-1818
Author(s):  
刘丽炜 Liu Liwei ◽  
曲璐 Qu Lu ◽  
谭勇 Tan Yong ◽  
张喜和 Zhang Xihe
Keyword(s):  
Spectrum Analysis ◽  
Pulsed Laser ◽  
Monocrystalline Silicon ◽  
Plasma Spectrum

Spectral characteristics of arc plasma during laser-arc double-sided welding for aluminum alloy

2015 ◽  
Vol 13 (6) ◽  
pp. 061403-61407 ◽  
Author(s):  
Kezhao Zhang Kezhao Zhang ◽  
Zhenglong Lei Zhenglong Lei ◽  
Xianglong Wang Xianglong Wang ◽  
Yanbin Chen Yanbin Chen ◽  
Yaobang Zhao Yaobang Zhao
Keyword(s):  
Aluminum Alloy ◽  
Spectral Characteristics ◽  
Arc Plasma
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