Results 21 to 30 of about 30,206 (259)

Study on the Physical Characteristics of Plasma and Its Relationship with Pore Formation during Laser-Metal Active Gas Arc Hybrid Welding of 42CrMo Steel

Photonics, 2023
The automobile industry puts forward higher requirements for the design and manufacture of steel pistons. However, the welding of 42CrMo steel pistons still has unsolved technical problems, especially welding defects that cannot be directly detected ...
Yan Zhang, Hao Li, Xin Mi, Hongzhi Zhou, Mingjun Zhang, Zhongmin Wan, Liyuan Tang   +6 more
doaj   +1 more source

Research of temperature and microstructure in friction stir welding of Q235 steel with laser-assisted heating

Results in Physics, 2018
In this paper, a three dimension heat source is developed in laser heated friction stir welding. The model was calculated by CFD software FLUENT, and the temperature field and flow field of the welding are obtained.
Xinjiang Fei, Zhifeng Wu
doaj   +1 more source

Innovations in Monitoring, Control and Design of Laser and Laser-Arc Hybrid Welding Processes

Metals, 2021
With the rapid development of high power laser, laser welding has been widely used in many fields including manufacturing, metallurgy, automobile, biomedicine, electronics, aerospace etc. Because of its outstanding advantages, such as high energy density,
Zheng-Xiong Ma, Pei-Xin Cheng, Jie Ning, Lin-Jie Zhang, Suck-Joo Na   +4 more
doaj   +1 more source

PARAMETERS FORECASTING OF LASER WELDING BY THE ARTIFICIAL INTELLIGENCE TECHNIQUES

Facta Universitatis. Series: Mechanical Engineering, 2018
Laser welding process is used in many industrial sectors. One of the most important aspects of the laser welding quality refers to the geometrical and mechanical properties of welding joints.
Vlastimir Nikolić, Miloš Milovančević, Dalibor Petković, Dejan Jocić, Milan Savić   +4 more
doaj   +1 more source

Recognition of DC01 Mild Steel Laser Welding Penetration Status Based on Photoelectric Signal and Neural Network

Metals, 2023
Achieving online inspection and recognition of laser welding quality is essential for intelligent industrial manufacturing. The weld penetration status is an important indicator for assessing the welding quality, and the optical signal is the most common
Yue Niu, Perry P. Gao, Xiangdong Gao
doaj   +1 more source

Residual Stress in Laser Welding of TC4 Titanium Alloy Based on Ultrasonic laser Technology

Applied Sciences, 2018
Laser welding is widely used in titanium alloy welding due to its high energy density, small heat affected zone, and rapid processing ability. However, problems with laser welding, such as deformation and cracking caused by residual stress, need to be ...
Yu Zhan, Enda Zhang, Yiming Ge, Changsheng Liu   +3 more
doaj   +1 more source

Progressive developments and challenges in dissimilar laser welding of steel to various other light alloys (Al/Ti/Mg): A comprehensive review

Heliyon, 2022
In recent days, the utilization of lightweight alloys for various applications has been increased massively. Starting from the automobile industry, aerospace industry, and even in the biomedical field, there is a need for dissimilar precise joining of ...
Partha Sarathi Ghosh, Abhishek Sen, Somnath Chattopadhyaya, Shubham Sharma, Jujhar Singh, Changhe Li, Grzegorz Królczyk, S. Rajkumar   +7 more
doaj   +1 more source

Relationship between Microstructure and Corrodibility of Local Dry Underwater Laser Welded 304 Stainless Steel

Metals, 2022
To understand the relationship between microstructure and corrosion, in this study, underwater bead-on-plate laser welding was compared with the in-air laser welding of 10-mm-thick 304 stainless steel plates at different laser powers (2, 4, and 6 kW ...
Danbi Song, Jungsoo Choi, Dongsig Shin, Su-Jin Lee   +3 more
doaj   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

Advanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi, Pankaj Shrivastava, Ganesh Chouhan, Velaphi Msomi   +3 more
wiley   +1 more source

Comparative Analysis of Mechanical Properties and Microstructure of 7B52 Aluminum Alloy Laser-MIG Hybrid Welding and MIG Welding Joints

Metals
Laser-MIG hybrid welding and MIG welding were carried out on 7B52 aluminum alloy, and the microstructure and mechanical properties of the joints were compared and analyzed.
Yu Lu, Dafeng Wang, Lijun Cao, Liangchao Ma, Haolin Zeng   +4 more
doaj   +1 more source