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Materials Research Express, 2018
Precipitation-hardened 7075 (Al-Zn-Mg-Cu) aluminum alloys have low specific density and high strength. Because of these advantages, they are commonly used as construction materials in the aerospace industries.
B. Çevik
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Precipitation-hardened 7075 (Al-Zn-Mg-Cu) aluminum alloys have low specific density and high strength. Because of these advantages, they are commonly used as construction materials in the aerospace industries.
B. Çevik
semanticscholar +1 more source
Robust control of gas tungsten arc welding system
Chinese Journal of Mechanical Engineering (English Edition), 2007The robust control law for gas tungsten arc welding dynamic process,which is a typical sampled-data system and full of uncertainties,is presented.By using the Lyapunov second method, the robust control and robust optimal control for a class of sampled-data systems whose underlying continuous-time systems are subjected to structured uncertainties are ...
Chen Shan-ben, WU Junfeng
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A theoretical model for gas metal arc welding and gas tungsten arc welding. I.
Journal of Applied Physics, 1998A recently developed theory for predicting arc and electrode properties in gas metal arc welding (GMAW) has been generalized to include arc–electrode interfaces, variation of surface tension pressure with temperature, Marangoni forces and handling of weld pool development in stationary gas tungsten arc welding (GTAW).
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An investigation on residual stresses in gas tungsten arc welding
PAMM, 2018AbstractIt is known that the gas tungsten arc welding (GTAW) generates high and localised heat gradients in the welded components, leading to the formation of weld bead and residual stresses that affect their fatigue life. In this work, a finite element model of GTAW is presented to estimate the temperature and stress induced by GTAW.
An Danh Nguyen +2 more
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1993
Abstract The melting temperature necessary to weld materials in the gas-tungsten arc welding (GTAW) process is obtained by maintaining an arc between a tungsten alloy electrode and a workpiece. This article discusses the advantages and limitations and applications of the GTAW process.
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Abstract The melting temperature necessary to weld materials in the gas-tungsten arc welding (GTAW) process is obtained by maintaining an arc between a tungsten alloy electrode and a workpiece. This article discusses the advantages and limitations and applications of the GTAW process.
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Arc Welding Processes: Gas Tungsten Arc Welding: Principle and System Components
2021This chapter presents the principle of tungsten inert gas (TIG) welding process. Components of TIG welding system and their role will be described. This process is also known as gas tungsten arc welding (GTAW) process. Further, fundamentals of heat generation, arc stability and arc efficiency of GTAW have also been elaborated.
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Characterization of welding arc and weld pool formation in vacuum gas hollow tungsten arc welding
Journal of Materials Processing Technology, 2013Abstract An experimental method is suggested to obtain the effective arc radii for various welding conditions in vacuum gas hollow tungsten arc welding. The irradiance distribution of welding arc next above the anode workpiece is obtained by applying Abel inversion algorithm to the CCD arc image, and then used to determine the distribution of arc ...
Cho, DW Cho, D. W. +2 more
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Journal of Physics D: Applied Physics, 2018
A 2D computational model of the mixing of multiple metal vapours into a helium arc in gas tungsten arc welding of stainless steel is presented. The combined diffusion coefficient method, extended to three-gas mixtures, is used to treat helium–chromium ...
Hunkwan Park +4 more
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A 2D computational model of the mixing of multiple metal vapours into a helium arc in gas tungsten arc welding of stainless steel is presented. The combined diffusion coefficient method, extended to three-gas mixtures, is used to treat helium–chromium ...
Hunkwan Park +4 more
semanticscholar +1 more source
Weld penetration sensing in pulsed gas tungsten arc welding based on arc voltage
Journal of Materials Processing Technology, 2016Abstract An alternative to the conventional weld penetration sensing methods in pulsed gas tungsten arc welding is proposed for implementation at manufacturing sites. The fluctuation amplitude of arc voltage in the peak duration (ΔUk) reflects the weld penetration status in a single-weld spot; a fully penetrated weld spot is obtained in the step-by ...
Shiqi Zhang, Shengsun Hu, Zhijiang Wang
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Arc Physics of Gas-Tungsten Arc Welding
1993Abstract The gas-tungsten arc welding (GTAW) process is performed using a welding arc between a nonconsumable tungsten-base electrode and the workpieces to be joined. The arc discharge requires a flow of electrons from the cathode through the arc column to the anode.
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