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
core +1 more source
Validated prediction of weld residual stresses in austenitic steel pipe girth welds before and after thermal ageing, Part 2: modelling and validation [PDF]
, 2019 An extensive finite element simulation campaign was undertaken to examine the complete manufacturing history and high temperature thermal ageing of thick-walled girth-welded austenitic steel pipes fabricated from Esshete 1250 austenitic steel.
Austin +55 more
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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
core +1 more source
Modul pelatihan guru program keahlian teknik mesin paket keahlian teknik pengelasan sekolah menengah kejuruan (SMK) kelompok kompetensi J [PDF]
, 2016 Modul ini berisi paket keahlian teknik pengelasan, dengan materi pengelasan pipa menggunakan proses gas tungsten ARC welding (GTAW), materi dalam modul ini terdiri atas teknik las GTAW, posisi pengelasan, proses pengelasan pipa dan ...
Nurdin, Ahmad +3 more
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Analisis Kegagalan Retak Dan Teknologi Perbaikan Sudu Turbin Jenis Inconel 792 Pada Pesawat Terbang [PDF]
, 2013 Penelitian untuk melakukan analisis terhadap kegagalan retak telah dilakukan pada sudu turbin dari Auxiliary Power Unit (APU) pesawat terbang. Bahan sudu turbin adalah paduan super Inconel 792.
Estriyanto, Y. (Yuyun) +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
doaj +1 more source
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
doaj +1 more source
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
openaire +1 more source
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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Soldagem GTAW mecanizada com adição de arame frio
Revista Brasileira de Aplicações de Vácuo, 2019 O objetivo deste trabalho foi analisar o efeito da espessura da peca e da distância do arame frio a peca soldada (DAP) sobre a geometria e diluicao de cordoes depositados por meio do processo gas tungsten arc welding – mecanizado com adicao de arame frio (GTAW MAF) – visando as aplicacoes em revestimentos. Durante as soldagens, a corrente media foi de
Marcos Mesquita Da Silva +4 more
openaire +2 more sources