FEM modeling of softened base metal in narrow-gap joint by CMT+P MIX welding procedure

Shu, Fengyuan; Lü, Yaohui; Liu, Yuxin; Xu, Fu; Sun, Zhe; He, Peng; Xu, Bin

doi:10.1016/s1003-6326(14)63260-x

Cited by 18 publications

(3 citation statements)

References 15 publications

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“…Rna B et al use parametric analysis to study the effect of plate thickness on welding deformation and residual stress of CMT lap joint of 1180 MPa steel. Finite element simulation of CMT composite pulse welding (CMT+P) narrow gap welding joint can also accurately predict the softening zone of aluminum alloy substrate [8]. A heat source model has been proposed by Azar et al to simulate the effects of periodic arcs and metal deposition in CMT welding [9].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Temperature Field and Stress Field of TC4 Ti-tanium Alloy Joint Between CMT and MIG Welding

Zhang

MENG

et al. 2022

mech

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A model was used for the cold metal transfer (CMT) welding based on the volume heat flux distribution of double ellipsoids loaded with time intervals. The temperature field and stress field of TC4 titanium alloy were numerically simulated by ANSYS software. The distribution laws of temperature, residual stress and post-weld deformation during CMT and MIG welding were studied and compared. It was found that the maximum temperature of the molten pool in CMT welding was fluctuating and rising during the loading process, while the temperature of the molten pool in MIG welding was rising smoothly and the maximum temperature was higher than that in CMT welding. The welding stress field was analyzed by thermal-stress coupling analysis. The stress distribution simulated based on the MIG welding heat source was similar to CMT welding, but the maximum von Mises stress was greater than that of CMT welding. Due to the cooling shrinkage, both of them would produce angular deformation after welding. And the maximum angular deformation simulated based on the MIG welding heat source was greater than that of CMT welding. It was proved by welding simulation that CMT welding could reduce welding heat input and residual stress and deformation after welding.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Temperature Field and Stress Field of TC4 Ti-tanium Alloy Joint Between CMT and MIG Welding

Zhang

MENG

et al. 2022

mech

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“…During studies on CMT welding of parts made of AA7A52 alloy Shu et al [177] found that the intergranular segregation, providing the coarse grain boundary between the weld passes, exhibited inferior mechanical performances. Tri-axial stress distribution in the fusion zone pointed to the tendency to tensile failure under service conditions.…”

Section: Cold Metal Transfer Cmt Welding Methodsmentioning

confidence: 99%

Studies on Quality of Joints and Phenomena Therein for Welded Vehicle Components Made of Aluminium Alloy – a Review

Derbiszewski,

Obraniak,

Rylski

et al. 2024

Preprint

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To fulfil a need of limitation automotive emissions the reduction of vehicle weight is widely recommended and achieved in many ways, both by the construction of individual elements of the vehicle, and by the selection of light materials including Al alloys. Connecting these elements with each other and with elements made of iron alloys can be realized, inter alia, by welding or stir welding. However, the quality of the welds obtained varies widely and depends on many design, operational and environmental factors. The present study focused on a review of various welding technics used to joint both similar and dissimilar Al alloys utilized in automotive industry, the effect of various process parameters on welds quality, and phenomena appeared in such welds..

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“…During studies on the CMT welding of parts made of the AA7A52 alloy, Shu et al [178] found that intergranular segregation, providing the coarse grain boundary between weld passes, resulted in inferior mechanical performance. A tri-axial stress distribution in the fusion zone pointed to the tendency to tensile failure under service conditions.…”

Section: Cold Metal Transfer (Cmt) Welding Methodsmentioning

confidence: 99%

Studies on the Quality of Joints and Phenomena Therein for Welded Automotive Components Made of Aluminum Alloy—A Review

Derbiszewski,

Obraniak,

Rylski

et al. 2024

Coatings

View full text Add to dashboard Cite

To fulfill the need to limit automotive emissions, reducing vehicle weight is widely recommended and achieved in many ways, both by the construction of individual elements of the vehicle and by the selection of light materials, including Al alloys. Connecting these elements with each other and with elements made of iron alloys can be realized, inter alia, by welding or stir welding. However, the quality of the welds obtained varies widely and depends on many design, operational, and environmental factors. The present study focused on a review of various welding techniques used to join both similar and dissimilar Al alloys utilized in the automotive industry, the effect of various process parameters on weld quality, and the phenomena observed in such welds. The research methodology was based on the analysis of the content of articles from main databases. Apart from capturing the current state of the art, this review evaluates reaching the possible highest joint quality and welding process disadvantages such as porosity, poor surface quality, a tendency toward hot cracking, and low ductility for the Al alloys applied in the automotive industry.

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FEM modeling of softened base metal in narrow-gap joint by CMT+P MIX welding procedure

Cited by 18 publications

References 15 publications

Comparative Analysis of Temperature Field and Stress Field of TC4 Ti-tanium Alloy Joint Between CMT and MIG Welding

Comparative Analysis of Temperature Field and Stress Field of TC4 Ti-tanium Alloy Joint Between CMT and MIG Welding

Studies on Quality of Joints and Phenomena Therein for Welded Vehicle Components Made of Aluminium Alloy – a Review

Studies on the Quality of Joints and Phenomena Therein for Welded Automotive Components Made of Aluminum Alloy—A Review

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