Microstructure and Mechanical Property of 60 mm-Thick 304 Stainless Steel Joint by Ultra-Narrow Gap Fiber Laser Beam Welding

2014 ◽  
Vol 41 (8) ◽  
pp. 0803007
Author(s):  
张国伟 Zhang Guowei ◽  
肖荣诗 Xiao Rongshi
Keyword(s):  
Mechanical Property ◽  
Stainless Steel ◽  
Laser Beam ◽  
Fiber Laser ◽  
Laser Beam Welding ◽  
304 Stainless Steel ◽  
Narrow Gap ◽  
Steel Joint ◽  
Microstructure And Mechanical Property

scholarly journals Ultra-Narrow Gap Fiber Laser Conduction Welding Technology for 304 Stainless Steel Thick Plates and the Mechanical Properties of Welding Joints

Coatings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 59
Author(s):  
Guowei Zhang ◽  
Feihu Yu
Keyword(s):  
Stainless Steel ◽  
Fiber Laser ◽  
Base Metal ◽  
Steel Plates ◽  
304 Stainless Steel ◽  
Narrow Gap ◽  
Technological Parameters ◽  
Thick Plates ◽  
Butt Welding ◽  
Metal Plates

The application of thick metal plates is increasing, and the welding problem is becoming more and more prominent. Narrow gap laser welding is one of the important methods, and it is also a research hotspot. The stainless steel thick plates were welded using the ultra-narrow gap fiber laser conduction welding with filler wire. Results show that the ranges of technological parameters for the achievement of the weld seam with no defects are smaller when the gap width is comparatively larger. Using the optimized technological parameters, the butt welding with no defects on the 3 mm gap between two 304 stainless steel plates with 60 mm thickness was achieved through the filling 20 times. This welding method of 304 metal with large thickness is rare in the literature. The tensile strength of the welding joint can be up to 87% of that of the base metal, and the micro-hardness and yield strength of the joint are comparable with those of the base metal.

Taguchi Method for 304 Stainless Steel Nd-YAG Laser Beam Welding

2011 ◽  
Vol 287-290 ◽  
pp. 3112-3115
Author(s):  
Tsung Yuan Kuo ◽  
Huan Chang Lin ◽  
Tze Yuan Liao ◽  
Chih Hua Kuo ◽  
Tsung Jen Han
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Taguchi Method ◽  
Laser Beam ◽  
Laser Beam Welding ◽  
304 Stainless Steel ◽  
Optimum Process ◽  
Base Metals ◽  
Property Variation ◽  
Taguchi Analysis

This study uses the relative tensile strength of weld and base metal as a quality factor for the Taguchi analysis in laser beam welding of stainless steel. The result shows that the optimum process parameters can be obtained reasonably even in the case of the base metals have a larger property variation or the operation setup is not controlled well properly.

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