Results 11 to 20 of about 22,517 (260)

Research on morphology, porosity, mechanical properties of 7075 aluminum alloy repaired by arc welding and laser shock forging [PDF]

open access: yesHeliyon, 2023
There are many problems in the arc welding repair of aluminum alloy parts, such as excessive pores, coarse grains, and low hardness. Introducing external energy excitation is an effective solution.
Zhichao Chen   +5 more
doaj   +2 more sources

Tension testing of steel welded belts of the saw gaskets of a linter machine [PDF]

open access: yesE3S Web of Conferences, 2023
The results of tensile testing of steel welded belts of saw blades of a linter machine are presented in the article. A universal testing machine was used to find the tensile stability of steel welded belts of saw gaskets of a linter machine.
Ibragimov Farhod   +2 more
doaj   +1 more source

Physicomathematical modeling of the formation features of fillet welds of bridge metal structures under submerged-arc welding

open access: yesAdvanced Engineering Research, 2020
Introduction. The weld formation under the submerged-arc welding of bridge metal structures is investigated. The work objective is to study possibilities to increase the welding performance during the arc welding of fillet seams.
A. A. Mosin   +2 more
doaj   +1 more source

Effects of Oscillation Width on Arc Characteristics and Droplet Transfer in Vertical Oscillation Arc Narrow-Gap P-GMAW of X80 Steel

open access: yesMetals, 2023
In fields, such as oil and gas pipelines and nuclear power, narrow-gap welding has often been used for the connection of thick and medium-thick plates.
Hongsheng Liu   +4 more
doaj   +1 more source

Effect of Laser-arc Hybrid Welding Energy Parameters on Welding Stability

open access: yesMATEC Web of Conferences, 2018
The high-speed camera was used to collect the droplet transfer pattern and arc pattern of the laser-arc hybrid welding process. Using the methods of image processing and mathematical statistics, the effects of different laser and arc power conditions on ...
Fulong ZHANG, Hong ZHANG, Fengde LIU
doaj   +1 more source

Sensoring Fusion Data from the Optic and Acoustic Emissions of Electric Arcs in the GMAW-S Process for Welding Quality Assessment

open access: yesSensors, 2012
The present study shows the relationship between welding quality and optical-acoustic emissions from electric arcs, during welding runs, in the GMAW-S process.
Eber Huanca Cayo   +1 more
doaj   +1 more source

Double-Pulse Triple-Wire MIG Welding of 6082-T6 Aluminum Alloy: Process Characteristics and Joint Performances

open access: yesMetals, 2021
High-efficiency and high-quality welding has always been the focus of welding research. This article proposes a novel double-pulse, triple-wire MIG welding process for the welding of 6082-T6 aluminum alloy.
Ke Yang   +7 more
doaj   +1 more source

Linear Mathematical Model for Seam Tracking with an Arc Sensor in P-GMAW Processes

open access: yesSensors, 2017
Arc sensors have been used in seam tracking and widely studied since the 80s and commercial arc sensing products for T and V shaped grooves have been developed.
Wenji Liu   +3 more
doaj   +1 more source

Weld Formation, Microstructure Evolution and Mechanical Property of Laser-Arc Hybrid Welded AZ31B Magnesium Alloy

open access: yesMetals, 2022
Laser-arc hybrid welding of AZ31B magnesium alloy was carried out in this paper, and the effects of welding parameters (laser power, welding speed, welding current) on weld formation, microstructure evolution and mechanical property were studied.
Sibo Wang, Chunyan Yan, Zhengjia Gu
doaj   +1 more source

Assessing MMA Welding Process Stability Using Machine Vision-Based Arc Features Tracking System

open access: yesSensors, 2020
Arc length is a crucial parameter of the manual metal arc (MMA) welding process, as it influences the arc voltage and the resulting welded joint. In the MMA method, the process’ stability is mainly controlled by the skills of a welder. According to that,
Wojciech Jamrozik, Jacek Górka
doaj   +1 more source

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