Results 61 to 70 of about 821 (179)

Time resolved Thomson scattering diagnostic of pulsed gas metal arc welding (GMAW) process

Journal of Physics: Conference Series, 2014
In this work a Thomson scattering diagnostic technique was applied to obtain time resolved electron temperature and density values during a gas metal arc welding (GMAW) process. The investigated GMAW process was run with aluminum wire (AlMg 4,5 Mn) with 1.2 mm diameter as a wire electrode, argon as a shielding gas and peak currents in the range of 400 ...
M Kühn-Kauffeldt, J L Marquès, J Schein   +2 more
openaire   +1 more source

Controlling the high weld rejection rate of mechanized gas metal arc welding process (GMAW)

World Journal of Advanced Research and Reviews
Welding is a crucial part of any fabrication and construction activities for Oil and Gas industries. Achieving the welding with the highest quality possible is the main objective of all companies in this field. Therefore, great attention was given for selection of the proper welding process and optimize the variables to achieve welding quality that ...
Mohamed Ahmed Elsayed, Xu Dong Young
openaire   +2 more sources

On the Visualization of Gas Metal Arc Welding Plasma and the Relationship Between Arc Length and Voltage

Applied Sciences, 2017
In this article, the camera settings for high-speed imaging of the arc, metal transfer, and weld pool in gas metal arc welding (GMAW) are investigated.
Emanuel B. F. Dos Santos, Letícia H. Kuroiwa, A. Felipe C. Ferreira, Rob Pistor, Adrian P. Gerlich   +4 more
doaj   +1 more source

Review on Fatigue of Additive Manufactured Metallic Alloys: Microstructure, Performance, Enhancement, and Assessment Methods

Advanced Materials, Volume 36, Issue 17, April 25, 2024.
Additive manufactured metals have excellent mechanical properties, but their fatigue resistance is an exception. This article reviews the processes attributes, hierarchical microstructure, fatigue performance, and evaluation methods. The fatigue failure mechanisms of printed metals were summarized, and the competition between trans‐scale ...
Hui Liu, Hanyang Yu, Chuan Guo, Xuliang Chen, Shiyu Zhong, Lin Zhou, Amr Osman, Jian Lu   +7 more
wiley   +1 more source

Influence of Gravity on Molten Pool Behavior and Analysis of Microstructure on Various Welding Positions in Pulsed Gas Metal Arc Welding

Applied Sciences, 2019
This study performed welding on various welding positions in the flat, overhead, and vertical down positions using a pulsed gas metal arc welding (P-GMAW) process.
Jin-Hyeong Park, Sung-Hwan Kim, Hyeong-Soon Moon, Myung-Hyun Kim   +3 more
doaj   +1 more source

Simulation of wire metal transfer in the cold metal transfer (CMT) variant of gas metal arc welding using the smoothed particle hydrodynamics (SPH) approach Simulation des Metalldrahttransfers bei der Kaltmetalltransfer‐Variante (CMT) des Metallschutzgasschweißens unter Verwendung des geglätteten Partikel‐basierten hydrodynamischen (SPH) Ansatzes

Materialwissenschaft und Werkstofftechnik, Volume 55, Issue 1, Page 62-71, January 2024.
In the present work a novel approach for the simulation of mass transfer in cold metal transfer variant of gas metal arc welding using smoothed particle hydrodynamics is provided. The hallmark of this process is the recoiling of the wire during the short‐circuit phase.
O. Mokrov, S. Warkentin, L. Westhofen, S. Jeske, J. Bender, R. Sharma, U. Reisgen   +6 more
wiley   +1 more source

Selection of Welding Conditions for Achieving Both a High Efficiency and Low Heat Input for Hot-Wire Gas Metal Arc Welding

Journal of Manufacturing and Materials Processing
This study presents a new gas metal arc welding (GMAW) technique that achieves both high efficiency and low heat input using a hybridization of the hot-wire method.
Keita Marumoto, Akira Fujinaga, Takeshi Takahashi, Hikaru Yamamoto, Motomichi Yamamoto   +4 more
doaj   +1 more source

Research status of seam tracking methods for orbital pipe welding robots

Journal of Hebei University of Science and Technology, 2015
This paper first outlines the worldwide oil and gas pipeline laying situation by 2013 and industrial applications, the working characteristics and advantages of orbital pipe welding robots using the gas metal arc metal(GMAW).
Sheng HU, Yu LUO, Xiangdong JIAO, Canfeng ZHOU, Suxin HAN   +4 more
doaj   +1 more source

Numerical simulations of arc plasma under external magnetic field-assisted gas metal arc welding

AIP Advances, 2020
The arc plasma behavior for gas metal arc welding (GMAW) with an external compound magnetic field was numerically investigated. A three-dimensional finite element model for the external magnetic field (EMF) and a three-dimensional finite volume model for
Lin Wang, Ji Chen, ChunLi Jiang, ChuanSong Wu   +3 more
doaj   +1 more source

Microstructure, mechanical properties and sensitization of ultra-low nickel Cr–Mn austenitic stainless steels

Journal of Materials Research and Technology
The present study deals with the effect of shielded metal arc welding (SMAW) and gas metal arc welding (GMAW) processes with different welding speeds on microstructural and mechanical properties including intergranular corrosion susceptibility of ultra ...
Sachin P. Ambade, Chetan K. Tembhurkar, Awanikumar Patil, Atul V. Tidke, Sagar D. Shelare, Chander Prakash, Milos B. Djukic, Nima Khosravi, Prabhu Paramasivam   +8 more
doaj   +1 more source