Effect of joint configuration on resistance spot weldability of galvanised DP780 steel sheets

Wei, Shitong; Liu, R. D.; Lv, Da; Lü, Xiaoliang; Ding, Shengli

doi:10.1179/1362171815y.0000000081

Cited by 10 publications

(9 citation statements)

References 16 publications

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“…In any case, the thickness of welding nugget was found to diminish with the growing welding current. The principal motivation of researches is the optimization of weld quality [12][13][14][15][16] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Welding Parameters of Resistance Spot Welding on Mechanical Properties and Corrosion Resistance of 316L

et al. 2022

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The purpose of this research is to analyze the mechanical properties and corrosion resistance of spot welding of stainless steels AISI 316L using the process of resistance spot welding varying welding parameters with three level for each of welding parameter; welding current (A.), electrode Pressure (bar), squeeze time (s.), and welding time (s.). The welding current was (4500, 5500 and 6500) A, the electrode Pressure was (20, 30 and 40) bar, the squeeze time was (0.6, 0.8 and 1) Sec., and the welding time was (0.3, 0.6 and 0.9) Sec. The specimens were inspected by a tensile-shear test, corrosion test and the inspection of scanning electron microscope (SEM). The technique of design of the experiments (DOE) was utilized to examine the influence of the welding process parameters on the joint tensile-shear force. The results were analyzed by the DOE method to determine the optimum tensile-shear force, where can be obtained by utilizing the welding parameters by welding current 5500A, electrode pressure of 30 bar, squeeze time 0.8s., and welding time of 0.3s. The examination of SEM indicated that the increment of welding current and electrode pressure leads to increment pitting and corrosion rate.

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Section: Introductionmentioning

confidence: 99%

Effect of Welding Parameters of Resistance Spot Welding on Mechanical Properties and Corrosion Resistance of 316L

et al. 2022

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“…Only Pouranvari and Marashi 16 studied the mechanical properties of three-sheet drawing quality special killed (DQSK) steel for different lap sequences. Wei et al 17 studied the effect of the joint configuration on the resistance spot weldability of DP 780 steel sheets. It is widely recognised that metallurgical and hardness characteristics of the welds strongly affect the mechanical properties and failure behaviour of RSW joints.…”

Section: Introductionmentioning

confidence: 99%

Effect of joint design on the failure behaviour of three-stack-up austenitic stainless steel resistance spot welds

Zhang¹,

Li²,

Luo³

et al. 2016

Science and Technology of Welding and Joining

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Tensile shear tests were carried out on three-stack-up austenitic stainless steel resistance spot welds having four types of joint design. Mechanics-based criteria were applied to reveal the difference in the stress state at the microstructural level. Optical microscopy and scanning electron microscopy showed evidence of the different stress states for different joint designs. Nugget rotation generated combined tensile/shear stress at the microstructural level. The peak load and the energy absorption of the joints reduced with the growth of the normal component of the global loads. Joints for which both interfaces bear the load were more prone to failure in pullout mode.

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“…The good weld qualities for three & four-layer spot welds were observed as compared to the two-layer welds. 19 Hongbo et al., observed the numerical study and the effects of microstructural incompatabilities and chemical behavior on mechanical properties of DP780 steel. In this study he carried out the test with dual phase 780 steel to investigate the ferrite grain average diameter, martensite volume fraction & chemical behavior.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on resistance spot welding of dissimilar weld joints

Verma

Arora

Sharma

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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In the present study, galvanized High Strength Interstitial Free (HIF) steel sheets, and Dual Phase (DP780) steel sheets were used for the investigations. Resistance spot weld joints were fabricated between dissimilar steel sheets. The variation in dynamic resistance (DR) with the change in welding process parameters such as weld current, weld time and electrode force were used for establishing the range of adequate weld nugget formation parameters. Effect of these parameters over tensile strength, nugget diameter and the observed failure mode was studied using one factor at a time (OFAT) approach. Microstructure and hardness of parent metal, fusion & HAZ region has also been studied.

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Effect of joint configuration on resistance spot weldability of galvanised DP780 steel sheets

Cited by 10 publications

References 16 publications

Effect of Welding Parameters of Resistance Spot Welding on Mechanical Properties and Corrosion Resistance of 316L

Effect of Welding Parameters of Resistance Spot Welding on Mechanical Properties and Corrosion Resistance of 316L

Effect of joint design on the failure behaviour of three-stack-up austenitic stainless steel resistance spot welds

Experimental investigation on resistance spot welding of dissimilar weld joints

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