Ultrasonic vibration assisted laser welding of nickel-based alloy and Austenite stainless steel

2018 ◽  
Vol 31 ◽  
pp. 759-767 ◽  
Author(s):  
Siyu Zhou ◽  
Guangyi Ma ◽  
Wu Dongjiang ◽  
Dongsheng Chai ◽  
Mingkai Lei
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Ultrasonic Vibration ◽  
Austenite Stainless Steel ◽  
Nickel Based Alloy

Three-dimensional transient thermoelectric currents in deep penetration laser welding of austenite stainless steel

2017 ◽  
Vol 91 ◽  
pp. 196-205 ◽  
Author(s):  
Xin Chen ◽  
Shengyong Pang ◽  
Xinyu Shao ◽  
Chunming Wang ◽  
Jianzhong Xiao ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Three Dimensional ◽  
Deep Penetration ◽  
Austenite Stainless Steel

scholarly journals Suppression of Bottom Porosity in Fiber Laser Butt Welding of Stainless Steel

Photonics ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 359
Author(s):  
Xiaobing Pang ◽  
Jiahui Dai ◽  
Mingjun Zhang ◽  
Yan Zhang
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Ultrasonic Vibration ◽  
Vehicle Body ◽  
Shielding Gas ◽  
Rear Wall ◽  
Butt Welding ◽  
Welding Technology ◽  
High Prevalence ◽  
Weld Porosity

The application bottleneck of laser welding is being gradually highlighted due to a high prevalence of porosity. Although laser welding technology has been well applied in fields such as vehicle body manufacturing, the suppression of weld porosity in the laser welding of stainless steel containers in the pharmaceutical industry is still challenging. The suppression of bottom porosity was investigated by applying ultrasonic vibration, changing welding positions and optimizing shielding gas in this paper. The results indicate that bottom porosities can be suppressed through application of ultrasonic vibration at an appropriate power. The keyhole in ultrasound-assisted laser welding is easier to penetrate, with better stability. No obvious bulge at the keyhole rear wall is found in vertical down welding, and the keyhole is much more stable than that in flat welding, thus eliminating bottom porosity. The top and bottom shielding gases achieve the minimal total porosities, without bottom porosity.

Parametric Study of Underwater Laser Welding on 304 Austenite Stainless Steel

2019 ◽  
Vol 972 ◽  
pp. 222-228
Author(s):  
Yun Long Fu ◽  
Ning Guo ◽  
Ji Cai Feng
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Welding Speed ◽  
Laser Power ◽  
Single Layer ◽  
Working Environment ◽  
Laser Weld ◽  
Butt Welding ◽  
Austenite Stainless Steel ◽  
Underwater Laser

The underwater laser welding assisted by a single-layer gas torch was carried out on the austenite stainless steel based on the underwater laser welding experimental platform. Butt welding experiments under shallow water were performed to investigate the effects of laser power, welding speed and defocusing distance on the underwater laser welding quality and optimized the process parameters. It was found that the ideal underwater laser weld can be obtained with the laser power of 2.0 kW, the welding speed of 2.0 m/min and the defocusing distance of 1 mm, demonstrating the self-developed single-layer gas-assisted drainage device could create working environment similar to onshore laser welding, by analyzing the metallographic structure and mechanical properties of underwater laser weld and in-air laser weld.

Laser absorption in high-power fiber laser welding of stainless steel and aluminum alloy

2008 ◽  
Author(s):  
Naoyuki Matsumoto ◽  
Yousuke Kawahito ◽  
Masami Mizutani ◽  
Seiji Katayama
Keyword(s):  
Stainless Steel ◽  
Aluminum Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
High Power ◽  
Fiber Laser Welding ◽  
Laser Absorption

Effect of milling on the microstructure and mechanical property of austenite stainless steel

2020 ◽  
Vol 62 (12) ◽  
pp. 1181-1186
Author(s):  
Huanchun Wu ◽  
Wenxin Ti ◽  
Guodong Zhang ◽  
Fei Xue ◽  
Chengtao Li ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Stainless Steel ◽  
Austenite Stainless Steel ◽  
Microstructure And Mechanical Property
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