Results 41 to 50 of about 2,919 (265)

Analysis of arc behavior and weld forming in double-wire single-arc MAG welding controlled by longitudinal magnetic field

Hanjie xuebao
As a new type of high-efficiency welding process, the magnetically controlled double-wire single-arc MAG welding has poor arc controllability and is easily affected by external interference during the welding process.
Qian ZHANG, Hongchang ZHANG, Yi’nan LI, Minghao CHEN, Hongtao ZHANG   +4 more
doaj   +1 more source

Collaborative and Quantitative Prediction for Reinforcement and Penetration Depth of Weld Bead Based on Molten Pool Image and Deep Residual Network

IEEE Access, 2020
Weld quality is generally determined by reinforcement and penetration depth of weld bead in arc welding. Penetration depth reflects weld strength and reinforcement reflects weld shape. What's more, there is a strong coupling between them, therefore it is
Jun Lu, Yumin Shi, Lianfa Bai, Zhuang Zhao, Jing Han   +4 more
doaj   +1 more source

Effect of arc current on forming and mechanical properties of AZ31B/DP980 laser-induced arc welded joint

Cailiao gongcheng, 2022
Without adding any interlayers or coatings, the lap welding experiment of AZ31B magnesium alloy and DP980 high-strength steel was performed with the laser-induced tungsten inert gas welding (TIG) arc technology. Through optimizing the process parameters,
SONG Gang, LI Chuanyu, LANG Qiang, LIU Liming   +3 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Weld Pool Flow Characteristics in Double-Wire Arc Welding of Aluminum Alloys: Research by Numerical Simulations

Crystals
Double-wire arc welding involves simultaneously feeding two wires into a molten pool, improving the efficiency and flexibility of traditional welding techniques.
Bolun Dong, Yunhao Xia, Zhida Ni, Xiaoyu Cai, Sanbao Lin   +4 more
doaj   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source

Effect of oscillating laser welding parameters on energy distribution and joint forming of 5A06 thick plate aluminum alloy

Hanjie xuebao
Clockwise circular oscillation (CW) laser welding experiments are carried out on 8.0 mm thick 5A06 aluminum alloy. Considering the beam oscillating trajectory and energy superposition effect, the energy distribution model of the workpiece surface is ...
Jiasi CAI, Wen WANG, Jianxin GAO, Hongxi JIN, Yanhong WEI   +4 more
doaj   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

On the Determination of the Forming Limits of Low-Alloy Steel Thin-Walled Tubes [PDF]

MATEC Web of Conferences
This paper presents an innovative methodology to determine the formability limits of low-alloy steel tubes, with particular attention to the effects of the weld line on their performance.
Magrinho João, Cruz Pedro, Sáenz-De-Argandoña Eneko, Mendiguren Joseba, Silva M. Beatriz   +4 more
doaj   +1 more source