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  • بازدید امروز : 77
  • بازدید دیروز : 20
  • بازدید کل : 73525

مقاله جوشکاری Finite element analysis of the thermo-mechanical behavior of the resistance spot welding

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 force, contact resistance temperature distribution on the contact resistance were investigated. The ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری Parametric Studies and Finite Element Analysis of Welded Steel in Resistance Spot Welding Process

مقاله جوشکاری با عنوان : Parametric Studies and Finite Element Analysis of Welded Steel in Resistance Spot Welding Process Kishore, N.1*, Sreenu, S.2, Ramachandran, N.3, Allesu, K.   چکیده : Resistance Spot Welding (RSW) is a widely used joining process for fabricating sheet assemblies in the automotive,marine and aerospace industries. Modern vehicles contain 2000-5000 spot welded points. The main requirements ofthese automobile parts are corrosion resistance of chassis, the high strength values of sheets used, the stiffness ofwelded joints when exposed to an ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری A study on numerical analysis of the resistance spot welding process

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 to use this information for the optimization and mobilization of thewelding ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری Modeling and Fuzzy Control of the Resistance Spot Welding Process

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 . The paperproposes a new method with input welding energy to estimate the nugget size and to ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری Study of Forward Method on Imaging of Nugget in Resistance Spot Welding

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 and establishes theforward model of RSW on the basis of the forward theory andthe electromagnetic ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری Finite element analysis of resistance spot welding process

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 process and the temperature distribution ofthe weldment are obtained through the analysis. Then based ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری Ultrasonic spot welded AZ31 magnesium alloy: Microstructure, texture, and lap shear strength

مقاله جوشکاری با عنوان : Ultrasonic spot welded AZ31 magnesium alloy: Microstructure, texture, and lap shear strength V.K. Patel, S.D. Bhole n, D.L. Chen چکیده: The structural application of ultra-lightweight magnesium alloys inevitably involves welding andjoining. A solid-state welding – ultrasonic spot welding (USW) – was conducted on AZ31B-H24 Mgalloy sheet by varying a key parameter of welding energy in this study, aiming to identify the changesin the microstructure, crystallographic texture, and lap shear tensile strength. The grain size wasobserved ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری Characterization of microstructure and deformation behaviour of resistance spot welded AZ31 magnesium alloy

مقاله جوشکاری با عنوان : Characterization of microstructure and deformation behaviour of resistance spot welded AZ31 magnesium alloy N. Kishore Babua,∗, 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 microscopy (HR-SEM and EDS/X).The resistance spot welded magnesium alloy joints consist mainly of ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری Effect of electromagnetic stirring on the microstructures and mechanical properties of magnesium alloy resistance spot weld

مقاله جوشکاری با عنوان : Effect of electromagnetic stirring on the microstructures and mechanical properties of magnesium alloy resistance spot weld   Q. Yao, Z. Luo ⇑, Y. Li, F.Y. Yan, R. Duan   چکیده : This paper investigates the effect of electromagnetic stirring (EMS) on the nugget formation, microstructure,and mechanical properties of magnesium alloy resistance spot weld (RSW). The EMS was induced byan external magnetic field (EMF), which produced by a pair of permanent magnets. The results showedthat the EMS drove the molten metal in the ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴

مقاله جوشکاری Effects of welding parameters on the characteristics of magnesium alloy joint welded by resistance spot welding with cover plates

مقاله جوشکاری با عنوان : Effects of welding parameters on the characteristics of magnesium alloy joint welded by resistance spot welding with cover plates Hongxin Shi a,b,*, Ranfeng Qiu a, Jinhong Zhu a, Keke Zhang a, Hua Yu a, Gaojian Ding   چکیده : Magnesium alloy AZ31B sheets were welded using the technique of resistance spot welding with coverplates. The effects of welding parameters on the characteristics of the joint were investigated. The jointwith larger nugget and higher tensile shear load was obtained under relatively low welding current ...

مبلغ قابل پرداخت 1,000 تومان

انتشار : ۲۵ تیر ۱۳۹۴


مطالب تصادفی

  • آموزش صوتی کتاب اینترچنج 1 (Interchange1) توسط مهندس باقری
  • Simulation of ODE/PDE Models with MATLAB, OCTAVE and SCILAB
  • Linear Control Systems with solved problems and MATLAB examples
  • MATLAB Codes for Finite Element Analysis
  • تکنولوژی  جوشکاری

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