Results 31 to 40 of about 25,483 (300)

Ultrafast Laser Welding of Silicon

Advanced Photonics Research, 2023
While ultrafast laser welding is an appealing technique for bonding transparent workpieces, it is not applicable for joining silicon samples due to nonlinear propagation effects which dramatically diminish the possible energy deposition at the interface.
Maxime Chambonneau, Qingfeng Li, Markus Blothe, Stree Vithya Arumugam, Stefan Nolte   +4 more
openaire   +3 more sources

A Study on the Influences of Welding Position on the Keyhole and Molten Pool Behavior in Laser Welding of a Titanium Alloy

Metals, 2019
Various welding positions need be used in laser welding of structures with complex configurations. Therefore, it is necessary to gain knowledge of how the welding positions can influence the keyhole and weld pool behavior in order to better control the ...
Baohua Chang, Zhang Yuan, Hao Cheng, Haigang Li, Dong Du, Jiguo Shan   +5 more
doaj   +1 more source

Effects of Sc on laser hot-wire welding performance of 7075 aluminum alloy

Materials Research Express, 2020
In order to clarify the effects of Sc modification on laser hot-wire welding performance of 7075 high strength aluminum alloys, the changing rules of weld formation, microstructure, element loss, mechanical performances and pores of weld joints were ...
Shichun Li, Wei Xu, Gang Xiao, Zhenhong Zhou, Fei Su, Jianghua Feng   +5 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

Optimization of tensile strength of ferritic / austenitic laser welded components [PDF]

, 2008
Ferritic/Austenitic (F/A) joints are a popular dissimilar metals combination used in many applications. F/A joints are usually produced using conventional processes.
Anawa, E., Olabi, Abdul-Ghani, A.G. Olabi, E.M. Anawa   +3 more
core   +1 more source

Effect of WAAM Process Parameters on Structure and Mechanical Properties of Low-Carbon Steel Thin Walls

Journal of Manufacturing and Materials Processing
Wire Arc Additive Manufacturing (WAAM) has emerged as a promising additive manufacturing technique due to its high deposition rate and low material cost.
Margarita Klimova, Konstantin Nasonovskiy, Dmitrii Mukin, Ilya Astakhov, Artem Voropaev, Alexey Evstifeev, Alexey Silkin, Rudolf Korsmik, Nikita Stepanov   +8 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

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

Temperature measurement inside and near the weld pool during laser welding [PDF]

, 1999
The work in this article deals with the measurement of temperature fields inside and near the weld pool during laser welding. The laser source used for this study is a 7.5 kW CO2 laser, and the welded material is a UNS N08904 austenitic stainless steel ...
J. Quesada, S. Lhospitalier, BOURGES, Philippe, LHOSPITALIER, Sylvie, LAMBERTIN, Michel, P. Bourges, QUESADA, Jean, M. Lambertin, A. Bert, BERT, Alexandre   +9 more
core   +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