Results 71 to 80 of about 18,159 (208)
MaterialsThe characteristics of a variable polarity plasma arc (VPPA) and the keyhole behavior significantly influence weld formation. This study investigates the impact mechanism of welding current on weld formation by examining both arc thermal-force output and keyhole behavior through a combination of numerical analysis and experimental methods.
Ruiqing Lang, Yongquan Han, Yonglin Ma
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Investigation of conduction to keyhole mode transition [PDF]
, 2012 There are two very distinct welding modes in laser welding, keyhole and conduction mode. The characteristics of keyhole laser welding; mainly high penetration, high productivity and high aspect ratio have led the industry to focus more on this mode.
Goncalves Assuncao E +1 more
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Effect of tool centreline deviation on the mechanical properties of friction stir welded DH36 steel
, 2015 Friction stir welding of steel has gone through recent tool and optimisation developments allowing the process to be considered as a technically superior alternative to fusion welding.
Cater, Stephen R. +3 more
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Archives of Metallurgy and Materials, 2014 The article presents the process of production of coated electrodes and their welding properties. The factors concerning the welding properties and the currently applied method of assessing are given. The methodology of the testing based on the measuring
Słania J., Ślązak B.
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Fatigue improvement of welded elements by ultrasonic impact treatment [PDF]
Zavarivanje i zavarene konstrukcije, 2020 The ultrasonic impact treatment (UIT) is relatively new and promising process for fatigue life improvement of welded elements and structures. In most industrial applications this process is known as ultrasonic peening (UP). The beneficial effect of UIT/UP is achieved mainly by relieving of tensile residual stresses and introducing of compressive ...
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Stabilisation of plasma welding arcs by low power laser beams
, 2022 S.323-328Results of an experimental study are presented in which the impact of a low power laser beam on the stability behaviour of plasma arcs was investigated. Both heat sources were arranged in a recently developed coaxial set-up.
Schnick, M. +4 more
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Experimental investigation of hot air welding process of PVDF polymer [PDF]
MATEC Web of ConferencesThis work has been carried out to optimize the parameters for hot air welding, a variety of experimental experiments are conducted in order to investigate the impact of certain welding parameters on the intended response in the polyvinylident fluriod ...
Chayma Hidri +3 more
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Hybrid laser arc welding of X80 and X120 steel grade
, 2022 S.15-24The aim of the present work was to investigate the possibilities of hybrid laser arc welding regarding reliable production of longitudinal welds of high strength pipe steels X80 and X120 and to evaluate achievable mechanical properties of laser ...
Gumenyuk, Andrey +2 more
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Narrow-gap laser-TIG hybrid welding process and mechanical properties of 0Cr13Ni5Mo stainless steel
Hanjie xuebaoTo address the issues of insufficient impact toughness of the weld metal and low welding efficiency of the traditional arc welding in Pelton turbine runners, a narrow-gap laser-TIG hybrid welding process was proposed in this paper.
Zhen DING +6 more
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CrystalsTaguchi and post-heat treatment methods have been used in this study to optimize the metal inert gas (MIG) welding joints between SUS304 austenite stainless steel and plain carbon SS400 steel using AWS ER 308L filler wire.
Van-Thuc Nguyen +11 more
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