Topic
Heat-affected zone
About: Heat-affected zone is a research topic. Over the lifetime, 18787 publications have been published within this topic receiving 231744 citations.
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TL;DR: In this article, energy efficient methods for joining aluminium to steel have potential for major applications in the automobile industry, where 1 mm gauge 6111 aluminium and DC04 steel automotors are compared.
Abstract: Energy efficient methods for joining aluminium to steel have potential for major applications in the automobile industry. Results are reported where 1 mm gauge 6111 aluminium and DC04 steel automot...
110 citations
TL;DR: In this article, a computational model of the argon arc plasma in gas-metal arc welding (GMAW) that includes the influence of metal vapour from the electrode is presented, and the occurrence of a central minimum in the radial distributions of temperature and current density is demonstrated.
Abstract: A computational model of the argon arc plasma in gas‐metal arc welding (GMAW) that includes the influence of metal vapour from the electrode is presented. The occurrence of a central minimum in the radial distributions of temperature and current density is demonstrated. This is in agreement with some recent measurements of arc temperatures in GMAW, but contradicts other measurements and also the predictions of previous models, which do not take metal vapour into account. It is shown that the central minimum is a consequence of the strong radiative emission from the metal vapour. Other effects of the metal vapour, such as the flux of relatively cold vapour from the electrode and the increased electrical conductivity, are found to be less significant. The different effects of metal vapour in gas‐tungsten arc welding and GMAW are explained.
110 citations
TL;DR: In this paper, the effect of welding speed and rotation speed on the microstructure in the stir zone has been investigated by measuring the Si particle distribution in the ADC12 alloy.
110 citations
TL;DR: In this paper, the authors applied FSpW to join the 6061-T4 aluminum alloy sheet with 2mm thickness and found that the tensile/shear strength reached the maximum of 7117.0 and 4555.4 N at the welding condition of the rotational speed of 1500rpm and duration time of 4 s.
110 citations
TL;DR: In this article, an integrated thermal-metallurgical-mechanical model is used to analyse and provide insights into the formation of the residual stress and the changes in microstructure and property of Al6061-T6 friction stir welds.
Abstract: An integrated thermal–metallurgical–mechanical model is used to analyse and provide insights into the formation of the residual stress and the changes in microstructure and property of Al6061-T6 friction stir welds. The simulations were conducted by means of a three-dimensional finite element model that accounts for the phenomena of frictional heating, weld microstructure and strength changes due to dissolution and reprecipitation of the hardening precipitate particles, and the mechanical workpiece/tool contact during the friction stir welding (FSW) process. The model predictions were confirmed by experimental measurement data from previous studies. For the friction stir welds investigated, it was found that the residual stress distribution is strongly dependent on the welding process parameters and the degree of material softening caused by welding. The recovery of material strength from natural aging does not increase the residual stress in the weld. The failure of friction stir weld under tensi...
110 citations