Results 11 to 20 of about 19,220 (254)

Visualisation of alternating shielding gas flow in GTAW [PDF]

open access: yesMaterials & Design, 2016
The alternating shielding gas technique is a method of achieving transient arc characteristics during arc welding; however the complex flow that occurs through its use has not been investigated previously.
I. Bitharas   +4 more
doaj   +3 more sources

Research on Arc Length Tracking Control Technology of Tube-Sheet Welding Based on Pulsed TIG

open access: yesIEEE Access, 2023
During tungsten inert gas welding process, arc length will change due to thermal deformation, uneven surface of workpiece and tungsten electrode loss. Considering the large fluctuation of arc length in all-position annular seam welding under the action ...
Jianhua Ma   +4 more
doaj   +1 more source

Influence of magnetically constricted arc traverse speed (MCATS) on tensile properties and microstructural characteristics of welded Inconel 718 alloy sheets

open access: yesDefence Technology, 2021
The magnetically constricted arc technique was implemented to mitigate the heat input related metallurgical problems in Gas Tungsten Arc Welding (GTAW) of Inconel 718 alloy particularly Nb segregation and subsequent laves phase evolution in fusion zone ...
Tushar Sonar   +4 more
doaj   +1 more source

Advances of orbital gas tungsten arc welding for Brazilian space applications – experimental setup [PDF]

open access: yesJournal of Aerospace Technology and Management, 2010
The present work describes details of the several steps of the technology involved for the orbital Gas Tungsten Arc Welding (GTAW) process of pure commercially titanium tubes.
José A. Orlowski de Garcia   +4 more
doaj   +2 more sources

Suppression of liquation cracking susceptibility via pre-weld heat treatment for manufacturing of CM247LC superalloy turbine blade welds

open access: yesJournal of Advanced Joining Processes, 2021
In this study, the weldability of as-cast CM247LC superalloy was metallurgically evaluated for turbine blade applications in terms of its hot cracking behavior and susceptibility.
Eun-Joon Chun   +4 more
doaj   +1 more source

Arc Characteristics and Weld Bead Microstructure of Ti-6Al-4V Titanium Alloy in Ultra-high Frequency Pulse Gas Tungsten Arc Welding (UHFP-GTAW) Process

open access: yesMedžiagotyra, 2020
To resolve the problem of grain coarsening occurring in the fusion zone and the heat-affected zone during conventional gas tungsten arc welding(C-GTAW) welded titanium alloy, which severely restricts the improvement of weld mechanical properties, welding
Wei LI   +3 more
doaj   +1 more source

Selection of Welding Process for Repairing Shredder Hammer by Integrated Data Envelopment Analysis (DEA) and P-robust Technique [PDF]

open access: yesMATEC Web of Conferences, 2019
The Selection of the welding process is one of the most significant decision-making problems, and it involves a wide range of information following the type of product.
Wisnu Wardana Rahmad   +2 more
doaj   +1 more source

Difficulties and redressal in joining of aluminium alloys by GMA and GTA welding: a review

open access: yesJournal of Materials Research and Technology, 2023
The article reviews the difficulties and its redressal in fusion welding (especially the most used welding processes in the industry; gas metal arc (GMA) and gas tungsten arc (GTA) welding) of aluminium alloys.
Rajesh P. Verma   +4 more
doaj   +1 more source

Gas Pool Coupled Activating TIG Welding Method with Coupling Arc Electrode

open access: yesChinese Journal of Mechanical Engineering, 2018
Gas pool coupled activating TIG (GPCA-TIG) welding put forward in-house can dramatically enhance weld penetration of TIG welding through introducing active element oxygen to reverse the Marangoni convection flow in the molten pool.
Yong Huang, Rui-Lin Liu, Yan-Zhao Hao
doaj   +1 more source

Effect of Residual Stresses of GTA Welding for Dissimilar Materials [PDF]

open access: yesMaterials Research, 2018
The purpose of the present work is to understand the evolution of residual stresses in weldments. The study made to weld the multipass dissimilar of Nickel-based superalloy Inconel 625 and stainless steel 316L using Continuous Current Gas Tungsten Arc ...
Harinadh Vemanaboina   +3 more
doaj   +2 more sources

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