Resistance Spot Welding: Fundamentals and Applications for the Automotive Industry

Kimchi, Menachem; Phillips, D. H.

doi:10.2200/s00792ed1v01y201707mec005

Cited by 33 publications

(22 citation statements)

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“…In fact, these parameters were considered in the most evaluated papers. However, according to [16], expulsion is a problem that frequently occurs in these cases.…”

Section: Related Workmentioning

confidence: 99%

“…Resistance spot welding is a relatively simple process and it presents four basic phases: squeeze time, welding time, hold time, and the off time, which is the necessary time to start the next weld process [16]. Other phases may be added to the basic welding cycle such as the pre-heating time, upslope time and downslope time [24].…”

Section: Resistance Spot Welding (Rsw)mentioning

confidence: 99%

“…Next, temper is applied to the molten material. Regarding the RSW, the post-weld heat treatment may be applied during the process by the electrodes, using a temper current, lower than the welding current, allowing the heat treatment to occur in-situ after the welding process [16][17][18][19][20][21][22][23][24]. Based on [16][17][18][19][20][21][22][23][24], Figure 1 depicts the welding cycle including the pre-heating time, upslope time, downslope time, quenching time, and temper time, besides the basic phases.…”

Section: Resistance Spot Welding (Rsw)mentioning

confidence: 99%

“…All the considered responses were modeled generating the following Equations and associated R 2 adj according to Equations (8)- (16). The residual analysis shows that all the residuals are normally distributed, which indicates that the models are satisfactory, since they have all presented good values for the R 2 adj metric.…”

Section: Factor Abbreviation Fixed Levelmentioning

confidence: 99%

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Optimization of the Resistance Spot Welding Process of 22MnB5-Galvannealed Steel Using Response Surface Methodology and Global Criterion Method Based on Principal Components Analysis

Ribeiro

Romão

Luz

et al. 2020

Metals

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The 22MnB5-galvannealed steel is extensively used in the hot stamping process to produce car anti-collision structure parts. Furthermore, the resistance spot welding (RSW) is an important process in the automobile industry, especially in body construction, and the 22MnB5-galvannealed steels are a big challenge for the joining methods because their microstructure and mechanical properties are different from those of the conventional steels. In view of this, the present paper aims to optimize the parameters of the RSW process of the 22MnB5-galvannealed steel. Initially, the goal was to remove the galvannealed coating and in the next stage, the following responses were maximized: the nugget width, the nugget cross-sectional area, the penetration, the strength, the joint efficiency, and the energy absorption, whereas the indentation, heat affected zone and separation were used as constraints. The process parameters selected were the effective welding time, the effective welding current, the quenching time, and the upslope time. Response surface methodology (RSM) was applied jointly with the global criterion method based on principal components. The results of the multiobjective optimization are close to the individual targets for each response, highlighting the importance of considering the correlation structure presented in the responses.

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“…In fact, these parameters were considered in the most evaluated papers. However, according to [16], expulsion is a problem that frequently occurs in these cases.…”

Section: Related Workmentioning

confidence: 99%

Section: Resistance Spot Welding (Rsw)mentioning

confidence: 99%

Section: Resistance Spot Welding (Rsw)mentioning

confidence: 99%

Section: Factor Abbreviation Fixed Levelmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of the Resistance Spot Welding Process of 22MnB5-Galvannealed Steel Using Response Surface Methodology and Global Criterion Method Based on Principal Components Analysis

Ribeiro

Romão

Luz

et al. 2020

Metals

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show abstract

“…Projection welding like any spot welding process has a major problem, which is high variation in quality of welding joints (Li et al, 2001). For the most cases, the quality of the welding joints depends on the effective operation of the welding machine and its components (Kimchi & Phillips, 2017). In this regard ensuring reliable and effective operation of the machine is essential in order to meet the established welding quality requirements.…”

Section: Introductionmentioning

confidence: 99%

A reliability-based preventive maintenance methodology for the projection spot welding machine

Ulugbek¹,

Sheng²,

Xiao³

et al. 2018

10.5267/j.msl

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An effective operations of a projection spot welding (PSW) machine is closely related to the effectiveness of the maintenance. Timely maintenance can prevent failures and improve reliability and maintainability of the machine. Therefore, establishing the maintenance frequency for the welding machine is one of the most important tasks for plant engineers. In this regard, reliability analysis of the welding machine can be used to establish preventive maintenance intervals (PMI) and to identify the critical parts of the system. In this reliability and maintainability study, analysis of the PSW machine was carried out. The failure and repair data for analysis were obtained from automobile manufacturing company located in Uzbekistan. The machine was divided into three main sub-systems: electrical, pneumatic and hydraulic. Different distributions functions for all subsystems was tested and their parameters tabulated. Based on estimated parameters of the analyzed distributions, PMI for the PSW machines sub-systems at different reliability levels was calculated. Finally, preventive measures for enhancing the reliability of the PSW machine sub-systems are suggested.

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Investigation of Resistance Spot Welded Joints Made on Ultra-high-Strength Steel Sheets

Meilinger²

2022

Lecture Notes in Mechanical Engineering

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Resistance Spot Welding: Fundamentals and Applications for the Automotive Industry

Cited by 33 publications

References 0 publications

Optimization of the Resistance Spot Welding Process of 22MnB5-Galvannealed Steel Using Response Surface Methodology and Global Criterion Method Based on Principal Components Analysis

Optimization of the Resistance Spot Welding Process of 22MnB5-Galvannealed Steel Using Response Surface Methodology and Global Criterion Method Based on Principal Components Analysis

A reliability-based preventive maintenance methodology for the projection spot welding machine

Investigation of Resistance Spot Welded Joints Made on Ultra-high-Strength Steel Sheets

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