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Diffusion bonding of Ti-6Al-4V by pulse current heating and hot-pressing HE Dai-hua(何代华), FU Zheng-yi(傅正义), WANG Wei-min(王为民) State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China Received 28 July 2006; accepted 15 September 2006 Abstract: Pulse current heating (PCH) was used to join Ti-6Al-4V alloy at two......
Optimizing pulsed current gas tungsten arc welding parameters of AA6061 aluminium alloy using Hooke and Jeeves algorithm S. BABU1, T. SENTHIL KUMAR2, V. BALASUBRAMANIAN1 1. Centre for Materials... is frequently constant current gas tungsten arc welding (CCGTAW), it resulted in grain coarsening at the fusion zone and heat affected zone(HAZ). Hence, pulsed current gas tungsten arc welding(PCGTAW......
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relationship to predict tensile strength of pulsed current gas tungsten arc welded AZ31B magnesium alloy was developed. Incorporating process parameters such as peak current, base current, pulse... to predict the tensile strength of pulsed current gas tungsten arc welded AZ31B magnesium alloy joints at 95% confidence level. The results indicate that pulse frequency has the greatest influence......
are submerged in an acidic electrolyte that is either flowing or stationary. Insoluble and low-electrical-resistant copper is used as the cathode electrode. When a pulse current is sent to the two electrodes... for corrosion resistance against synthetic seawater with respect to pulse time. The x-axis on the Tafel curve shows the current density, and the y-axis shows the potential [9], the corrosion......
REDDY G, GOKHALE A A, PRASAD RAO K. Optimization of pulse frequency in pulsed current gas tungsten arc welding of Al-Li alloy steels [J]. Journal of Material Science and Technology, 1998, 14: 61-66. [10... are provided to illustrate the proposed approach. Key words: pulsed current; gas tungsten arc welding; corrosion; titanium alloy 1 Introduction Due to the excellent combination of properties......
Effect of process parameters of pulsed current tungsten inert gas welding on weld pool geometry of titanium weldsM.Balasubramanian1,V.Jayabalan2,V.Balasubramanian31. Department of Mechanical...,Annamalai University摘 要:The effects of pulsing current parameters on weld pool geometry namely front height, back height, front width and back width of pulse......
in the strategy of controlled pulse key-holing. For any welding condition, a peak current value large enough should first be applied to assure the penetration and formation of keyhole. Once keyhole forms... To validate the system and the control strategy, controlled pulse key-holing welding experiments were conducted. The welding conditions were as follows: peak current IP=160 A, and base current IB=80......
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