Topic
Butt welding
About: Butt welding is a research topic. Over the lifetime, 7153 publications have been published within this topic receiving 44467 citations.
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TL;DR: In this article, the authors dealt with the hybrid welding properties of 12mm thick modified 12% Cr ferritic stainless steel complying with EN 1.4003 and UNS S41003 steels with a carbon content of 0.01% to improve the weldability.
31 citations
TL;DR: In this paper, the authors describe welded-connection tests that were performed on rectangular hollow sections (RHS), where the tension load was perpendicular to the direction of the weld.
Abstract: This paper describes welded-connection tests that were performed on rectangular hollow sections (RHS). The thickness of the RHS sections varied from 1.6 to 3.0 mm. Both butt welds and transverse fillet welds were tested where the tension load was perpendicular to the direction of the weld. The test results are compared with existing American, Australian, Canadian, and European design formulas, and proposed design formulas are given. The reliability analysis method is used to calibrate the existing and proposed design formulas.
31 citations
Patent•
12 Apr 1995
TL;DR: In this paper, an automated method for non-destructive inspection and evaluation of a weld through the use of ultrasonic waves produced by an electromagnetic acoustic transducer (EMAT) is presented.
Abstract: An automated method for non-destructive inspection and evaluation of a weld through the use of ultrasonic waves produced by an electromagnetic acoustic transducer (EMAT). The method includes automatic positioning of a transport apparatus containing EMAT transmitter (24) and receiver coils (26) in proximity of a just-completed weld (22); scanning the weld; receiving an electrical signal produced in the EMAT receiver coil by a reflected ultrasonic SH shear wave (29); recording and monitoring the electrical signal; analyzing the electrical signal relative to predetermined control limits; signaling the presence of a defect in the weld; and communicating electronically with a welding apparatus to reperform and/or alter the way in which subsequent welds are made so as to avoid repetition of the defect. The method also includes automatic receiving, recording, and monitoring of welding apparatus and welding process data, as well as automatic adjustment of corresponding welding apparatus and welding process parameters.
31 citations
TL;DR: In this paper, a study of the optimization of controllable input parameters such as current, voltage and gas flow rate by using the Taguchi method is performed, and theoretical calculations were performed to optimize the process parameters to achieve the minimum distortion angle.
Abstract: In the fabrication industry, metal inert gas (MIG) welding is a very important process and Fe410WA is the most commonly used material for the manufacturing of fabricated structures. During the preparation of butt welded joints, angular distortion is a major concern. Angular distortion can be minimized by optimizing the input parameters. In this paper, a study of the optimization of controllable input parameters such as current, voltage and gas flow rate by using the Taguchi method is performed. Butt welding samples were prepared by using three levels and three factors. An orthogonal array of nine trials is considered for the design of the experiment. After measuring the distortion angle, observed readings were verified by using analysis of variance (ANOVA) technique and it was found that the p-values were less than 0.05. Theoretical calculations were performed to optimize the process parameters to achieve the minimum distortion angle. A confirmation test was taken for validation purposes and to confirm th...
31 citations
TL;DR: In this paper, the effect of the inclined angle of the friction stir welding line to the applied stress has been studied, and the fatigue failure modes and fracture surfaces indicated that fatigue cracks tended to initiate from the base material or the heat-affected zone, regardless of the presence of welding flash.
31 citations