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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Patent•
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27 Aug 1980
TL;DR: An integrated welding torch and work positioning roller head assembly is mounted for controlled movement on a cross-touring gantry carriage overlying a vacuum hold-down bed that supports a workpiece panel.
Abstract: An integrated welding torch and work positioning roller head assembly is mounted for controlled movement on a cross travelling gantry carriage overlying a vacuum hold-down bed that supports a workpiece panel. The torch and roller head assembly has two related configurations, one for forming a butt weld along a seam joining edgewise abutting sections of flat stock to form a relatively larger unitary panel, and another head configuration for subsequently positioning and fillet welding stiffener webs to one face of the panel. Each of the head assembly configurations is provided with a cofunctioning arrangement of a welding torch (or torches) and seam tracker (or seam trackers) for positioning the torch (or torches) relative to the head assembly as the assembly is automatically guided by the gantry carriage along the intended seam, and a plurality of workpiece positioning and holding rollers which cofunction with the vacuum hold-down bed to form distortion-free panels, having consistently uniform welds along the seams, without the need of preliminary tack welding and without requiring special purpose jigs and tooling for each different panel and stiffener shape.
27 citations
Patent•
28 Mar 2007
TL;DR: In this paper, the authors proposed an orbital carrier for a device for welding butt-welding pipes, which is designed to enable positioning and movement in the plane of the joint between the pipes and the orbital carrier.
Abstract: The invention relates to an orbital carrier (2) for a device for butt-welding pipes (C, C) to form a pipeline, said device comprising at least one welding carriage (1) supporting at least one welding head (6) which has at least one welding torch, said orbital carrier (2) surrounding the pipes (C, C) to be welded and being designed to enable positioning and movement in the plane of the joint between the pipes (C, C) of said welding carriage or carriages (1), and said orbital carrier (2) also being movable translationally along the pipeline as it grows. The invention consists in the fact that said orbital carrier (2) consists of at least two components (20) in the form of segments of a circle able to be connected together to form the orbital carrier (2) around the pipes (C, C) during a welding phase and also to allow said orbital carrier (2) to be opened, at least at the top, to allow it to pass an obstruction on the outside of the pipe (C, C). Application: the welding of pipes (C, C).
27 citations
08 Nov 2018-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, the authors used friction stir welding to butt weld 5083-H116 aluminum alloy and HSLA-65 steel sheets and determined joint strength and failure position by IMC thickness and stress concentration at welded interface.
Abstract: Dissimilar metal joining is challenging because of intermetallic compound (IMC) formation. Solid state welding techniques provide an opportunity. 5083-H116 aluminum alloy and HSLA-65 steel sheets were butt welded by friction stir welding. Joint strength and failure position were determined by IMC thickness and stress concentration at welded interface.
27 citations
TL;DR: In this paper, the effect of tool shoulder diameter on heat input during friction stir welding of AA5052-H32 alloy and the resulting characteristics of the produced welded joints were investigated.
27 citations
TL;DR: In this paper, a part-circumference weld repair was performed on a stainless steel pipe girth weld and the measured through-wall axial stress profile was found to be membrane in character and of tensile magnitude equal to about 60% of the base metal 1% proof stress.
27 citations