Topic
Gas metal arc welding
About: Gas metal arc welding is a research topic. Over the lifetime, 11706 publications have been published within this topic receiving 109555 citations. The topic is also known as: metal active gas welding & GMAW.
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TL;DR: Welding characteristics of Ti-5Al-5V-5Mo-3Cr (Ti5553) alloy have been investigated in this article, where the weld joints were performed by laser beam (LBW), electron beam (EBW), and gas tungsten arc welding (GTAW).
36 citations
TL;DR: In this paper, a computational process model of the welding process is presented that solves three-dimensional fluid flow and heat transfer considering an oval shape moving volumetric heat source, considering melting and solidification phase change in the workpiece, natural and Marangoni convection in the meltpool, and convective and radiative heat losses from the welded plate.
36 citations
23 Dec 2014
TL;DR: In this article, a low-cost open-source 3D metal printer that utilizes gas metal arc welding technology has been developed that could make metal printing accessible to the average consumer, but this technology would demand access to expensive cutting tools for part removal from the substrate.
Abstract: Limited material options, prohibitively expensive equipment, and high production costs currently limit the ability of small and medium enterprises to use 3D printing to prototype and manufacture metallic goods. A low-cost open-source 3D metal printer that utilizes gas metal arc welding technology has been developed that could make metal printing accessible to the average consumer. Unfortunately, this technology would demand access to expensive cutting tools for part removal from the substrate. This article investigates several substrate treatments to provide a low-cost method to easily remove 3D-printed 1100 aluminum parts from a reusable substrate. Coatings of aluminum oxide and boron nitride on 1100 aluminum and A36 low-carbon steel substrates were tested. Lap shear tests were performed to assess the interlayer adhesion between the printed metal part and the print substrate. No warping of the substrate was observed during printing. It was determined that boron nitride-coated low-carbon steel pr...
35 citations
TL;DR: In this paper , a 3D numerical model is developed to study the dynamic behaviors characteristics of molten pool in the oscillating laser welding process of 5052 aluminum alloy, and the characteristics of morphology, temperature field, flow field of the molten pool are analyzed and discussed in details by the numerical calculation.
35 citations