A path to in-space welding and to other in-space metal processing technologies using Space Shuttle small payloads [PDF]
As we venture into space, it becomes necessary to assemble, expand, and repair space-based structures for our housing, research, and manufacturing. The zero gravity-vacuum of space challenges us to employ construction options which are commonplace on ...
Tamir, David
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Marangoni driven turbulence in high energy surface melting processes
, 2016 Experimental observations of high-energy surface melting processes, such as laser welding, have revealed unsteady, often violent, motion of the free surface of the melt pool.
Kenjereš, Saša +3 more
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Feasibility of remotely manipulated welding in space: A step in the development of novel joining technologies [PDF]
, 1985 A six month research program entitled Feasibility of Remotely Manipulated Welding in Space - A Step in the Development of Novel Joining Technologies is performed at the Massachusetts Institute of Technology for the Office of Space Science and ...
Agapakis, J. E. +3 more
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AC/DC mixed gas tungsten arc welding of a (FeCoNi)96Al4 high-entropy alloy
Journal of Materials Research and TechnologyHigh-entropy alloys (HEA) are a unique class of engineering alloys with excellent properties, and the study of their weldability is one of the key steps in applying them in the engineering field.
Chao Chen +4 more
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Acta Scientiarum: Technology, 2015 Certain techniques, comprising machining and GTAW dressing, have been used in the weld bead edge (region of the welded joint between the weld metal and the base metal) to increase the fillet radius of the region by reducing the stress concentrator factor,
Juvenilson Costa Damascena +5 more
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Optimització i instal·lació del procés GTAW en continu per soldar làmina de Cu [PDF]
, 2010 En el present projecte s’ha desenvolupat un sistema de soldadura en continu de Cu mitjançant soldadura GTAW amb elèctrode de tungstè. L’objectiu de tots els fenòmens i processos estudiats ha estat, poder desenvolupar un sistema robust i industrial ...
Torres Sacristán, Arnau
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Effect of dynamic wire in the GTAW process
Journal of Materials Processing Technology, 2019 Abstract Experimental tests were carried out to evaluate and compare metallic transfer aspects and welding process behavior, in GTAW with dynamic wire feeding in relation to conventional mode (wire insertion in a continuous way with constant speed / steady state). Inconel 625 cladded steel plates were laid out at four main welding positions (overhead,
Régis Henrique Gonçalves e Silva +3 more
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A comparison of the physics of Gas Tungsten Arc Welding (GTAW), Electron Beam Welding (EBW), and Laser Beam Welding (LBW) [PDF]
The physics governing the applicability and limitations of gas tungsten arc (GTA), electron beam (EB), and laser beam (LB) welding are compared.
Nunes, A. C., Jr.
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Influence of cutting parameters and tool wear on the surface integrity of cobalt-based Stellite 6 alloy when machined under a dry cutting environment [PDF]
, 2016 The efficiency of a machining process can be measured by evaluating the quality of the machined surface and the tool wear rate. The research reported herein is mainly focused on the effect of cutting parameters and tool wear on the machined surface ...
Alexander Galloway +19 more
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Iraqi Journal for Mechanical and Materials Engineering, 2018 The effect of DC pulsed GTAW method factors on mechanical properties of Aluminum alloys 6061–T6 is proves. Throbbed GTAW on the sheet having dimension of (200* 100* 5mm) is implemented at variable pulse current (150, 160, 170, 190) and constant ...
Jenan M Naje +2 more
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