Results 1 to 10 of about 333 (89)

A study on shrinkage residual stresses, microstructure and mechanical properties of ASS thick pipe welded by GMAW process

open access: yesMaterials Research Express, 2021
In this investigation, AISI 304LN austenitic stainless steel pipes having 25 mm thickness and 300 mm inner diameter with conventional and narrow groove were welded by continuous current gas metal arc welding (GMAW) and pulse current gas metal arc welding
Sudhir Kumar   +3 more
doaj   +1 more source

Impact Energy of Weld Metal in CK45 Carbon Steel [PDF]

open access: yesIranica Journal of Energy and Environment, 2020
Due to high joint efficiency, welding is widely used to join materials. Today, there are many types of welding procedures in different manufacturing industries. Among welding procedures, Gas Metal Arc Welding (GMAW) is a versatile process due to its high
H. R. Ghazvinloo
doaj   +1 more source

Study on the Molten Pool Fluid Behavior of PAW-Cable-Type Seven-Wire GMAW Hybrid Welding

open access: yesCrystals, 2022
Plasma arc welding (PAW)-cable-type seven-wire GMAW (gas metal arc welding) hybrid welding is known as a high-efficiency welding combining plasma arc, GMAW arc and cable-type welding wire. In this study, numerical simulation via Fluent of the molten pool
Chao Zhang, Qingxian Hu, Juan Pu, Hao Wu
doaj   +1 more source

Welding of Large Thickness Super Duplex Stainless Steel: Microstructure and Properties

open access: yesMetals, 2021
In this study, Submerged Arc Welding (SAW) and Gas Metal Arc Welding (GMAW) processes were used in multi-pass welding of 33 mm thickness super duplex stainless steel plates.
Maria Asuncion Valiente Bermejo   +3 more
doaj   +1 more source

Effects of Active Gases on Droplet Transfer and Weld Morphology in Pulsed-Current NG-GMAW of Mild Steel

open access: yesChinese Journal of Mechanical Engineering, 2021
The current research of narrow-gap gas metal arc welding (NG-GMAW) primarily focuses on improving the sidewall fusion and avoiding the lack-of-fusion defect. However, the high cost and operation difficulty of the methods limit the industrial application.
Guoqiang Liu   +4 more
doaj   +1 more source

Investigation on the Dynamic Behavior of Weld Pool and Weld Microstructure during DP-GMAW for Austenitic Stainless Steel

open access: yesMetals, 2020
The influence of heat and droplet transfer into weld pool dynamic behavior and weld metal microstructure in double-pulsed gas metal arc welding (DP-GMAW) was investigated by the self-designed high-speed welding photography system. The heat input, the arc
Tao Chen   +5 more
doaj   +1 more source

Comparison of Properties and Bead Geometry in MIG and CMT Single Layer Samples for WAAM Applications

open access: yesMetals, 2021
The process of Wire Arc Additive Manufacturing (WAAM) utilizes arc welding technology to fabricate metallic components by depositing material in a selective layered fashion.
Harley Stinson   +3 more
doaj   +1 more source

Mechanical properties and microstructural characteristics of rotating arc-gas metal arc welded carbon steel joints

open access: yesJournal of the Mechanical Behavior of Materials, 2021
The main problem associated with high thickness carbon steel plate's narrow range or ā€œVā€ groove welding in conventional welding processes is the sagging of the molten pool due to gravity, which in turn leads to defects formation and deteriorates ...
Sankar Nallasamy   +2 more
doaj   +1 more source

Dissimilar Non-Ferrous Metal Welding: An Insight on Experimental and Numerical Analysis

open access: yesMetals, 2021
In recent years Gas Metal Arc Welding (GMAW) technology has expanded its functionalities in various areas which have further motivated its usage in several emerging manufacturing industries.
Jeyaganesh Devaraj   +2 more
doaj   +1 more source

Techno-economic Feasibility of Modified Pulse Arc Deposition on Thick Section of Quenched and Tempered Steel [PDF]

open access: yesMATEC Web of Conferences, 2019
Quenched and Tempered (Q&T) steels welded structures that have numerous applications, particularly in the defence industry. However these steels are particularly prone to Hydrogen Assisted Cold Cracking (HACC) and require a highly-skilled welder to ...
Cornish Neville   +3 more
doaj   +1 more source

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