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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

Composite control of the SiC arc welding power source based on the expert system and neuron PID [PDF]

open access: yesE3S Web of Conferences, 2021
A third generation wide-band-gap SiC semiconductor device is used in the SiC arc welding power source, which has a higher inverter frequency and greatly improves the dynamic characteristics of the arc welding power source, providing opportunities for ...
Si-min Chen   +3 more
doaj   +1 more source

Process Simulation and Optimization of Arc Welding Robot Workstation Based on Digital Twin

open access: yesMachines, 2023
For the welding cell in the manufacturing process of large excavation motor arm workpieces, a system framework, based on a digital twin welding robot cell, is proposed and constructed in order to optimize the robotic collaboration process of the welding ...
Qinglei Zhang   +4 more
semanticscholar   +1 more source

Influence of Different Frequency Pulse on Weld Bead Phase Ratio in Gas Tungsten Arc Welding by Ferritic Stainless Steel AISI-409L

open access: yesJournal of nanomaterials, 2022
The objective of the present experimental work is to obtain an appropriate welding parameter on pulsed current gas tungsten arc welding (GTAW) ferritic stainless steel AISI 409L with a thickness of 4.5 mm. Frequency affected penetration, and the ratio of
R. Venkatesh   +7 more
semanticscholar   +1 more source

Path Planning With Automatic Seam Extraction Over Point Cloud Models for Robotic Arc Welding [PDF]

open access: yesIEEE Robotics and Automation Letters, 2020
This letter presents a point cloud based robotic system for arc welding. Using hand gesture controls, the system scans partial point cloud views of workpiece and reconstructs them into a complete 3D model by a linear iterative closest point algorithm ...
Peng Zhou   +4 more
semanticscholar   +1 more source

Investigations on quality characteristics in gas tungsten arc welding process using artificial neural network integrated with genetic algorithm

open access: yesThe International Journal of Advanced Manufacturing Technology, 2021
Gas tungsten arc welding (GTAW) technology is widely used in industry and has advantages, including high precision, excellent welding quality, and low equipment cost.
Í. Tomaz   +5 more
semanticscholar   +1 more source

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

Experimental Investigation of Oxy-acetylene Welding and Arc Welding with Steel, Brass, and Bronze Electrodes [PDF]

open access: yesمهندسی عمران شریف, 2022
To consider the importance of avoiding corrosion of weld metal under various environmental conditions, the investigation into the efficiency of different welding methods with different types of electrodes will be inevitable.
B. Shervani Tabar   +2 more
doaj   +1 more source

Advanced High-Strength Steels for Automotive Applications: Arc and Laser Welding Process, Properties, and Challenges

open access: yesMetals, 2022
In recent years, the demand for advanced high-strength steel (AHSS) has increased to improve the durability and service life of steel structures. The development of these steels involves innovative processing technologies and steel alloy design concepts.
Ashok Kumar Perka   +3 more
semanticscholar   +1 more source

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