Investigation and development of technology for automatic argon-arc narrow gap welding of Du-850 pipes for reactor cooling plant to water–water reactors

Khodakov, V. D.; Данилов, А. И.; Khodakov, D.V.; Praliev, D. A.; Abrosin, A.A.; Gutorov, D.A.

doi:10.1080/09507116.2014.934536

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2022

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“…Narrow-gap argon arc welding [8], narrow-gap submerged-arc welding [9], and narrow-gap gas metal arc welding [10,11] are the conventional methods of thick plate welding in industry. The ultra-narrow gap welding method generally has a gap width of not more than 5 mm.…”

Section: Introductionmentioning

confidence: 99%

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

Zhang

2022

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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.

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Section: Introductionmentioning

confidence: 99%

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

Zhang

2022

Coatings

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show abstract

Investigation and development of technology for automatic argon-arc narrow gap welding of Du-850 pipes for reactor cooling plant to water–water reactors

Cited by 1 publication

References 0 publications

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

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

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