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 paper, an experimental investigation on butt welding of magnesium alloy to steel by hybrid laser-tungsten inert gas (TIG) welding with Cu-Zn alloy interlayer is carried out.
38 citations
TL;DR: In this paper, a finite-element formulation has been derived, based on the variational principle, for two-dimensional thermal stresses and metal movement during bead-on-plate and butt welding.
Abstract: This is the first part of a study of thermal stresses and metal movement during welding. This part discusses analysis of two-dimensional thermal stresses and metal movement during bead-on-plate and butt welding. A finite-element formulation has been derived, based on the variational principle. The formulation includes temperature dependence of material properties as well as the yield criterion.
37 citations
TL;DR: In this paper, a finite element model of the cross section is used to relate the strain changes at the measurement points to the residual stresses across the slot plane, and the method is demonstrated by using it to measure a known residual stress field in a cold bent bar.
Abstract: A new method for the measurement of residual stresses in welded joints of complex cross section is described. The method involves the measurement of strain changes in the body as a narrow slot is cut in the plane of interest, in small increments of depth. A finite element model of the cross section is used to relate the strain changes at the measurement points to the residual stresses across the slot plane.
The accuracy of the method is demonstrated by using it to measure a known residual stress field in a cold bent bar. The method has been used in combination with a block removal technique to measure the through wall distribution of axial residual stresses at a circumferential butt weld in a cylinder with a protruding root bead. It could also be applied to the measurement of residual stresses in other joint configurations, such as fillet welds or T-butt welds.
37 citations
Patent•
10 Aug 1985
TL;DR: In this paper, a method for continuous laser butt welding between two members is described, which consists of providing two members to be butt welded, positioning respective edges of the members in abutting contact with the two members being canted slightly with respect to one another so that the butt joint formed by the edges is open toward a first side of the member, with the edges contacting one another toward a second side of members opposite the first side.
Abstract: A method of forming a continuous laser butt weld between two members is disclosed. The method comprises providing two members to be butt welded, positioning respective edges of the members in abutting contact with the two members being canted slightly with respect to one another so that the butt joint formed by the edges is open toward a first side of the member, with the edges contacting one another toward a second side of the members opposite the first side, and directing a high energy density laser beam at the butt joint from the first side of the members so that at least a portion of the laser beam extends into the open side of the butt joint to the edges, while urging the edges of the two members in the direction of the butt joint for butt welding the members.
37 citations
TL;DR: In this paper, a laser butt welding of explosion welded Ti/steel bimetallic sheet is performed in this work, and the results showed that cracks usually observed in the transition zone of arc welded joint could be effectively avoided by using laser welding and a copper interlayer.
37 citations