مقاله جوشکاری با عنوان : Finite element analysis of the thermo-mechanical behavior of the resistance spot welding Murat Vural چکیده: In this study, the formation of the welding nugget and the effect of welding process parameters on nugget shape and size, have been studied. And a combined thermal-electrical-mechanical simulation system is done using a Finite Element Analysis program, and the effect of the welding parameters such as current, time, electrode ...
مقاله جوشکاری با عنوان : A study on numerical analysis of the resistance spot welding process H. Zhigang a, I.S. Kim b,*, J.S. Son b, H.H. Kim b, J.H. Seo b, K.C. Jang c,D.K. Lee c, J.M. Kuk c چکیده: Purpose: Over the last few years, there has been a growing interest in quantitative representation of heat transferand fluid flow phenomena in weld pools in order to study relationships between the processing variables andthe quality of the weldment produced and ...
مقاله جوشکاری با عنوان : Modeling and Fuzzy Control of the Resistance Spot Welding Process Xingqiao Chen, Keiiji Araki, Takeshi Miziiiio چکیده : This paper establishes a welding energy model and describes a hzzy adaptive process controlscheme for a resistance spot welding system.For a welding system, it is not easy to measure with on-line the output, the nugget size, by usualmeasuring method. And it is also difficult to control the welding process in real time ...
مقاله جوشکاری با عنوان : Study of Forward Method on Imaging of Nugget in Resistance Spot Welding Wenbo Xuan, Zhen Luo, Yang Li, Naifeng Fan چکیده: Inversion imaging of nugget in resistance spotwelding (RSW) is a new developing method of monitoring thewelding quality in RSW in recent years, which is based on therapid developments of the inverse problems in mathematicsand physics. This paper does some research on the forwardproblem of inversion imaging of nugget ...
مقاله جوشکاری با عنوان : Finite element analysis of resistance spot welding process Guo Zhong چکیده : A coupled finite element model is developed toanalyze the transient thermal and mechanical behaviors ofResistance Spot Welding (RSW) process using commercialsoftware ANSYS. A direct-coupled electrical-thermal FiniteElement Analysis (FEA) is firstly performed to simulate thetransient thermal characteristics of RSW process. The thermalhistory of the whole ...
مقاله جوشکاری با عنوان : Characterization of microstructure and deformation behaviour of resistance spot welded AZ31 magnesium alloy N. Kishore Babua, lowast;, S. Brauserb, M. Rethmeierb,c, C.E. Crossd چکیده : Resistance spot welds were prepared on 3 mm thick sheets of continuous cast and rolled AZ31 magnesiumalloy. The microstructure and composition analysis of weld nugget, heat affected zone (HAZ)and base metal were examined using optical and scanning electron ...
مقاله جوشکاری با عنوان : Electrical contact resistance effect on resistance spot welding P.S. Wei a,., T.H. Wub چکیده : The effects of local electrical contact resistance on transport variables, cooling rate, solute distribution,and nugget shape after solidification responsible for microstructure of the fusion zone during resistancespot welding are realistically and systematically investigated. The model accounts for electromagneticforce, heat generation ...
مقاله جوشکاری با عنوان : New parametric study of nugget size in resistance spot welding process using finite element method Hamid Eisazadeh a,*, Mohsen Hamedi b, Ayob Halvaee چکیده : Resistance spot welding process (RSW) is one of important manufacturing processes in automotiveindustry for assembling bodies. Quality and strength of the welds and therefore body mainly are definedby quality of the weld nuggets. The most effective parameters in this ...
مقاله جوشکاری با عنوان : Effects of Welding Parameters and Surface Pretreatments on ResistanceSpot Welding of AZ31B Mg Alloy Shiquan Zhou1, Lei Liu2,3, Jae Pil Jung4,*, Mok-Young Lee5, and Y. Norman Zhou3 چکیده : The resistance spot weldability of AZ31B magnesium alloy using AC (alternating current) was investigatedin this paper. The surfaces of sheet coupons were prepared by acetone cleaning (as-received) and some couponswere also cleaned with chromic acid (H2Cr2O7) ...
مقاله جوشکاری به عنوان : FINITE ELEMENT MODELING OF RESISTANCE SPOT WELDINGPROCESSP. Chigurupati*, B.K Chun, A. Bandar, W.T WuScientific Forming Technologies Corporation2545 Farmers Drive, Suite 200, Columbus, OH 43235, USA چکیده: ABSTRACT: Weld quality in Resistance Spot Welding is directly influenced by competing process transients. Thesetransients are caused by electrical, thermal, mechanical and metallurgical interactions. Controlling the process ...