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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 process are: current intensity, weldingtime, sheet thickness and material, geometry of electrodes, electrode force, and current shunting. Inpresent research, a mechanical–electrical–thermal coupled model in a finite element analysis environmentis made using. Via simulating this process, the phenomenon of nugget formation and the effectsof process parameters on this phenomenon are studied. Moreover, the effects of welding parameterson temperature of faying surface are studied. Using this analysis, shape and size of weld nuggets are computedand validated by comparing them with experimental results from published articles. The methodologydeveloped in this paper provides prediction of quality and shape of the weld nuggets with variationof each process parameter. Utilizing this methodology assists in adjusting welding parameters so thatcostly experimental works can be avoided. In addition, the process can be economically optimized tomanufacture quality automotive bodies.

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دانلود HavaShenas نرم افزار کم نظیر هواشناسی فارسی اندرویدمصدق و نبرد قدرتماهواره جیبی اندرویدمجموعه 5 تخت خواب 3 بعدی برای نرم افزار تری دی مکس (3D MAX) - مجموعه شماره (3)فایل ترمیم سریال Y320-U30بحران رهبری نقد ادبیبنياد اخلاق ✅فایل های دیگر✅

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