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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.


Papers
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Journal ArticleDOI
TL;DR: In this paper, an ultrasonic welding method for welding of metal and plastic materials has been proposed, and the welding method of using two vibration systems crossed at a right angle is effective, and 10 mm thick aluminum plates have been joined successfully.

52 citations

Journal ArticleDOI
01 Jul 1960
TL;DR: In this article, it was shown that the presence of spatter not only mars the appearance of the joint but also represents a loss in deposition efficiency, since large spatter will produce irregular beads which, in some cases, are bounded by regions of spatters.
Abstract: THE commercial success of a metal-arc-welding process depends in large measure upon the mode by which molten metal is transferred from the electrode to the workpiece. Excessively large drops will produce irregular beads which, in some cases, are bounded by regions of spatter. The presence of spatter not only mars the appearance of the joint but also represents a loss in deposition efficiency. This phase of the welding problem has occupied a prominent place in arc physics research during the past decade. Motion pictures showing transfer in slow motion is a familiar tool which has contributed to our knowledge of the various patterns and modes of metallic transfer with preset welding conditions.

52 citations

Journal ArticleDOI
TL;DR: In this paper, the microstructure and mechanical characterization of dissimilar friction stir welded AA5083-H111 and AA6351-T6 aluminum alloys were studied.

52 citations

Journal ArticleDOI
TL;DR: In this article, three different types of energy directors were studied-namely, a triangular, a rectangular, and an innovative semicircular energy director, and experiments were performed using far field test samples made of amorphous-type (ABS) and semicrystalline-type thermoplastics.
Abstract: An energy director is widely used in ultrasonic welding to increase the welding speed and quality. In the present work, three different types of energy directors were studied-namely, a triangular, a rectangular, and an innovative semicircular energy director. Experiments were performed using far-field test samples made of amorphous-type (ABS) and semicrystalline-type (PE) thermoplastics. It was found that the weld time is an important parameter of ultrasonic welding for the three types of energy directors studied. Weld pressure has different effects for the types of plastics tested. Increasing the weld pressure will decrease the welding efficiency for ABS. But for PE, increasing the weld pressure to four bars will increase the welding efficiency. The shape of the energy director was found to significantly affect the welding efficiency. In comparison, a semicircular shape was found to yield the highest welding efficiency under the same welding conditions and the triangular shape the lowest. Temperature measurements at the triangular energy director during the welding process indicate that the energy director absorbed 48.5% of the welding energy for ABS and 21.1% for PE. The different energy absorption rates are probably due to the difference in elasticity and viscosity between amorphous (ABS) and semicrystalline (PE) plastics.

52 citations

Patent
22 May 1985
TL;DR: In this paper, an image processing welding control method comprises detection of isothermal pattern of a weld zone in the welding state through photographing the weld zone by an infrared camera, calculation of the area of the region defined by the isothermal line detected, comparison of the areas with a standard area which is obtained in advance, control of welding heat input such that the area will be substantially the same as the standard area whereby a suitable welding heat is input the welding portion, detection of an asymmetric extent of said isothermal patterns, and controlling the torch position such that it will be within
Abstract: An image processing welding control method comprises detection of isothermal pattern of a weld zone in the welding state through photographing the weld zone by an infrared camera; calculation of the area of the region defined by the isothermal line detected; comparison of the area with a standard area which is obtained in advance; control of welding heat input such that the area will be substantially the same as the standard area whereby a suitable welding heat is input the welding portion; detection of an asymmetric extent of said isothermal pattern; and controlling the torch position such that the asymmetric extent will be within a predetermined value, so that the torch will be strictly aligned with the welding groove center. This method enables two kinds of welding control methods, torch position control and welding heat input control, based on the same image information.

52 citations


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