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Electric resistance welding

About: Electric resistance welding is a research topic. Over the lifetime, 16761 publications have been published within this topic receiving 154851 citations.


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Journal ArticleDOI
TL;DR: In this paper, the behavior and characteristics of a laser-induced plume were elucidated, and the effect of a tall plume leading to shallow weld was interpreted by considering the interaction of an incident laser beam against the zone of a low refractive index from the Mickelson interferometer results.

58 citations

Journal ArticleDOI
TL;DR: In this paper, laser beam welding (LBW) and laser-MIG hybrid welding (LAMIG) were used for welding the Ti-Al-Zr-Fe titanium alloy sheets.
Abstract: Ti–Al–Zr–Fe titanium alloy sheets with thickness of 4 mm were welded using laser beam welding (LBW) and laser-MIG hybrid welding (LAMIG) methods. To investigate the influence of the methods difference on the joint properties, optical microscope observation, microhardness measurement and mechanical tests were conducted. Experimental results show that the sheets can be welded at a high speed of 1.8 m/min and power of 8 kW, with no defects such as, surface oxidation, porosity, cracks and lack of penetration in the welding seam. In addition, all tensile test specimens fractured at the parent metal. Compared with the LBW, the LAMIG welding method can produce joints with higher ductility, due to the improvement of seam formation and lower microhardness by employing a low strength TA-10 welding wire. It can be concluded that LAMIG is much more feasible for welding the Ti–Al–Zr–Fe titanium alloy sheets.

58 citations

Journal ArticleDOI
TL;DR: In this article, an ultrasonic welding of an injection molded short carbon fiber reinforced composite is tested to investigate three important weld attributes, bonding efficiency, weld area, and horn indentation.

58 citations

Journal ArticleDOI
TL;DR: In this article, a mathematical model was established to simulate the weld pool development and dynamic process in stationary laser-metal inert gas (MIG) hybrid welding, where surface tension and buoyancy were considered to calculate liquid metal flow pattern.
Abstract: A mathematical model was established to simulate the weld pool development and dynamic process in stationary laser–metal inert gas (MIG) hybrid welding. Surface tension and buoyancy were considered to calculate liquid metal flow pattern; moreover, typical phenomena of MIG welding such as filler droplets impinging weld pool, electromagnetic force in the weld pool, and typical phenomena of laser beam welding such as recoil pressure, inverse Bremsstrahlung absorption, and Fresnel absorption were all considered in the model. The laser beam and arc couple effect was introduced into this model by the plasma width during hybrid welding. Transient weld pool shape and complicated liquid metal velocity distribution from two kinds of weld pool to a unified weld pool were calculated. Furthermore, the simulated weld bead geometries were in good agreement with experimental measurement.

57 citations

Journal ArticleDOI
TL;DR: In this article, the optimal welding parameters at welding positions from 180° to 360° were obtained by numerical optimization using response surface methodology (RSM) based on central composite design (CCD).
Abstract: Oscillating arc narrow gap all-position gas metal arc (GMA) welding is primarily applied for the construction of large metal structure with the advantages of high efficiency and quality. According to the characteristic of weld shape, oscillating arc narrow gap all-position welding process can be divided into two parts, namely 0–180° and 180–360°, and in this paper the welding process of part 180–360° was researched. The statistical models for weld geometry were developed to predict and optimize weld bead geometry by using response surface methodology (RSM) based on central composite design (CCD), and the developed models were checked for their adequacy and significance by ANOVA. Then, the effects of wire feed rate, travel speed, dwell time, oscillating amplitude, and welding position on weld bead dimension were studied. Finally, the optimal welding parameters at welding positions from 180° to 360° were obtained by numerical optimization using RSM.

57 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023106
2022247
202168
2020162
2019184
2018245