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a study of 16mndr steel thick plate narrow gap laser

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Xiong ZHANG Doctor of Engineering Huazhong University

Hybrid laser-arc welding is an emerging joining technology which has a promising prospect in thick plate manufacturing.In this paper,the thick plate butt joint of 16MnDR with 20 mm was Welding of thick stainless steel plates up to 50 mm with a study of 16mndr steel thick plate narrow gap laser#0183;Hybrid laser-arc welding is an emerging welding technology that has a promising prospect in large-scale equipment manufacturing.In this paper,the butt joint of 316L austenitic stainless steel with 40 mm was made by using the multi-layer hybrid laser-arc welding process.Understanding and elimination of process defects in narrow May 24,2016 a study of 16mndr steel thick plate narrow gap laser#0183;Narrow gap (or groove) laser welding involves multiple layer additive manufacture for the joining of thick-section metallic components.Typical defects include porosity,cracking,lack of fusion to sidewalls,and between layers,and component distortion including the closure of the groove.This study aimed to understand the defect formation mechanisms and factors affecting them,and to develop

Study of microstructure and mechanical properties of

Jun 12,2018 a study of 16mndr steel thick plate narrow gap laser#0183;Hybrid laser-arc welding is an emerging welding technology that has a promising prospect in large-scale equipment manufacturing.In this paper,the butt joint of 316L austenitic stainless steel with 40 mm was made by using the multi-layer hybrid laser-arc welding process.Solidification cracking sensibility of narrow gap laser The various laser welding processes which seem potential feasible approaches to solve cracking are performed.Abstract This study aimed to investigate the solidification cracking in narrow gap laser welding (NGLW) of ITER grade austenitic stainless steel 316LN.Research of Laser Beam Welding of Inconel Alloy Study of weld joints of nonferrous,Inconel 625 alloy sheets using a new generation disk laser as the green welding technology for the effective manufacturing were carried out,and the results are presented in this paper.Weld joints of the Inconel 625 alloy sheets 2,0 mm thick were welded by laser without an additional material at a flat position,using a high purity argon as the shielding gas.

Process-parameter interactions in ultra-narrow gap laser

Moderate laser powers of 1 to 2 kW were used to weld S960 high strength steel plates with a very narrow parallel groove (1.2 mm).Statistical design of experiments was carried out to assess the process parameter interactions and to optimise the ultra-narrow gap laser welding parameters.Process-parameter interactions in ultra-narrow gap laser Moderate laser powers of 1 to 2 kW were used to weld S960 high strength steel plates with a very narrow parallel groove (1.2 mm).Statistical design of experiments was carried out to assess the process parameter interactions and to optimise the ultra-narrow gap laser welding parameters.Previous123456NextEffects of laser energy allocation on weld formation of 9 The allocation of laser power was a complicated process for narrow gap laser welding with filler wire.The narrow gap laser welding of a 16 mm thick 9%Ni steel plate was performed with nickel based alloy as filler wire.The effects of laser power,defocusing amount,and the distance between laser and filler wire were investigated through orthogonal experiments.

Previous123456NextNarrow gap hybrid welding of thick stainless steel

Sep 27,2018 a study of 16mndr steel thick plate narrow gap laser#0183;In this study thick section austenitic stainless steel has been welded using multipass technique and hybrid process; Nd:YAG -laser+GMAW.Welding has been done using partially grooved V joint geometry and narrow gap with groove angle of 10 degrees.Parameters,for example in filler wire feeding and placement of the wire and the arc are varied.Narrow gap hybrid welding of thick stainless steel Sep 27,2018 a study of 16mndr steel thick plate narrow gap laser#0183;In this study thick section austenitic stainless steel has been welded using multipass technique and hybrid process; Nd:YAG -laser+GMAW.Welding has been done using partially grooved V joint geometry and narrow gap with groove angle of 10 degrees.Parameters,for example in filler wire feeding and placement of the wire and the arc are varied.

Narrow Gap Welding Process Info - Lincoln Electric

The Lincoln Electric Narrow Gap Welding Process is designed to meet the quality,mechanical properties and overall cost requirements of heavy wall fabrication.It is a submerged arc process designed to weld thick walled steel plate [from 2 in.up to 13.8 in.(51 mm up to 350 mm)] using a nearly parallel-sided,narrow gap plate preparation.Multi-pass laser welding of thick plate with filler wire Multi-pass laser welding of thick plate with filler wire by using mm thick austenitic stainless steel by using a narrow gap con- The material used in this study is a Q235 low-carbon steel Multi-Pass Laser and Hybrid Laser-Arc Narrow-Gap Welding Multi-pass laser and laser-arc narrow-gap welding make it possible to obtain high-quality butt joints of large-thickness pipe steels with hardness up to 26002800 MPa and toughness close to the base metal toughness at a temperature of 20 a study of 16mndr steel thick plate narrow gap laser#176;C.When multi-pass welding methods are used,the subsequent pass makes heat treatment of the previous ones,and reduces the rate of their cooling yet.

Microstructure and Mechanical Property of 60 mm-Thick

In order to realize the narrow-gap welding of 20 mm thick plate 16MnDR steel,experiments are designed to study the effect of root faces and groove angles on welding process stability,weld Influence of laser power on molten pool flow field of Jan 01,2021 a study of 16mndr steel thick plate narrow gap laser#0183;The current study adopted a three-dimensional numerical model to investigate the effect of laser power on the flow field,which under the condition of considering the keyhole and molten pool dynamic behaviors in Laser-MIG hybrid welding. G.Y.Mi,C.M.Wang,X.Y.Hu,X.F.Wang,Y.L.ZhangA Study of 16MnDR Steel Thick Plate Narrow Gap Laser In order to realize the narrow-gap welding of 20 mmthick plate 16MnDR steel,experiments are designed to study the effect of root faces and groove angles on welding process stability,weld appearances and welding efficiency,then optimize the size of the groove,on this basis,using autogenous laser as bottom welding,multi-pass multi-layer laser-MIG hybrid welding to fill the gap.A study of 16MnDR steel thick plate narrow gap laser-MIWas this helpful?A study of 16MnDR steel thick plate narrow gap laser-MIG In order to realize the narrow-gap welding of 20 mm thick plate 16MnDR steel,experiments are designed to study the effect of root faces and groove angles on welding process stability,weld

High-power CO2 laser-MIG hybrid welding for increased gap

For example,the literature includes a study on the practical application of a 45 kW CO 2 laser for the welding of thick steel plates,1 although few such applications have thus far been documented.The limited application of lasers to welding of thick steel plates is attributable to the narrow gap tolerance provided and the small laser beam High power disk laser-metal active gas arc hybrid welding Oct 29,2015 a study of 16mndr steel thick plate narrow gap laser#0183;In this study,welding with hybrid heat sources combined with a high power disk laser and a metal active gas (MAG) arc was carried out on 780 MPa high strength steel plates of 12 mm in thickness.The effects of respective welding conditions,such as laser power,root gap and welding speed on the penetration,geometry,and defects of weld beads,were investigated.Effects of laser energy allocation on weld formation of 9 The allocation of laser power was a complicated process for narrow gap laser welding with filler wire.The narrow gap laser welding of a 16 mm thick 9%Ni steel plate was performed with nickel based alloy as filler wire.The effects of laser power,defocusing amount,and the distance between laser and filler wire were investigated through orthogonal experiments.

Effect of Laser Welding on the Mechanical Properties AISI

Laser welding processes offer significant advantages such as high welding speed,narrow heat affected zone and quality of the welding joint.In this study,the process parameters of laser power and welding speed were modified for AISI 1018 steel plates of 8 mm thicknessEffect of Laser Welding on the Mechanical Properties AISI Laser welding processes offer significant advantages such as high welding speed,narrow heat affected zone and quality of the welding joint.In this study,the process parameters of laser power and welding speed were modified for AISI 1018 steel plates of 8 mm thicknessCited by 7Publish Year 2018Author Zhe Huang,Yan Cai,Weidong Mu,Yuzhang Li,Xueming HuaStudy of microstructural inhomogeneity and its effects on Sep 06,2017 a study of 16mndr steel thick plate narrow gap laser#0183;Hybrid laser-arc welding is an emerging joining technology which has a promising prospect in thick plate manufacturing.In this paper,the thick plate butt joint of 16MnDR with 20 mm was successfully connected by using multi-layer laser welding technology.On this basis,the microstructural inhomogeneity and its influences on mechanical properties of the multi-layer welded

Cited by 5Publish Year 2018Author Xiong Zhang,Gaoyang Mi,Shuo Li,Xiyuan Hu,Chunming Wang,Yuelai Zhang12345NextEffects of laser energy allocation on weld formation of 9

The allocation of laser power was a complicated process for narrow gap laser welding with filler wire.The narrow gap laser welding of a 16 mm thick 9%Ni steel plate was performed with nickel based alloy as filler wire.The effects of laser power,defocusing amount,and the distance between laser and filler wire were investigated through orthogonal experiments.Cited by 58Publish Year 2014Author Ruoyang Li,Tianjiao Wang,Chunming Wang,Fei Yan,Xinyu Shao,Xiyuan Hu,Jianmin LiEffects of laser energy allocation on weld formation of 9 The allocation of laser power was a complicated process for narrow gap laser welding with filler wire.The narrow gap laser welding of a 16 mm thick 9%Ni steel plate was performed with nickel based alloy as filler wire.The effects of laser power,defocusing amount,and the distance between laser and filler wire were investigated through orthogonal experiments.Analysis and improvement of laser wire filling welding Laser beam wobble technology has potential to improve narrow-gap laser wire filling welding adaptability for thick plate by its specific weld morphologies and process characteristics.Relevant studies,especially weld formation and microstructural evolution of 316L welded joint under various beam wobble conditions were rare.

Analysis and improvement of laser wire filling welding

Laser beam wobble technology has potential to improve narrow-gap laser wire filling welding adaptability for thick plate by its specific weld morphologies and process characteristics.Relevant studies,especially weld formation and microstructural evolution of 316L welded joint under various beam wobble conditions were rare.A study of narrow gap laser welding for thick plates using Dec 01,2014 a study of 16mndr steel thick plate narrow gap laser#0183;The results from this project have not yet been reported.Wang Baiping et al.reported welding 16 mm thick stainless steel plates using laser wire filling welding in three passes.Meanwhile,a number of foreign researchers have made contributions to this field.A study of droplet transfer behavior in ultra-narrow gap Apr 12,2016 a study of 16mndr steel thick plate narrow gap laser#0183;Laser arc hybrid welding became a useful method to weld thick plates.But a sound weld is not so easy to obtain because of the uncontrollability of droplet transfer state,especially in ultra-narrow gap welding process.In this study,V-like ultra-narrow gap welds were carried out using 80 % Ar + 20 % CO2 blend as shielding gas.A high-speed video system was used to observe the droplet

A novel approach to regulate energy allocation and melt

Fig.1 shows the schematic diagram of experimental setup for laser narrow gap welding and electromagnetic assisted wire wobbling method.Sample plates are automatically welded using a 6 kW IPG YLS-6000 fiber laser power source with a six-axis robotic welder.The wavelength of the operating laser is 1070 nm and the BPP beam parameter product is 6.4 mmmrad.1,a 1 ,2,b 1 ,c 1 ,dMulti -Pass Laser and Hybrid Laser -Arc Narrow- Gap Welding of Steel Butt Joints .V.Shelyagin.1,a,V.Khaskin According to the method offered in this study [11],,steel plates 50 mm thick

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