Hamedi, Mohsen, Eisazadeh, Hamid. (1393). Numerical Simulation of Nugget Geometry and Temperature Distribution in Resistance Spot Welding. , 46(1), 13-19. doi: 10.22059/jcamech.2015.53389
Mohsen Hamedi; Hamid Eisazadeh. "Numerical Simulation of Nugget Geometry and Temperature Distribution in Resistance Spot Welding". , 46, 1, 1393, 13-19. doi: 10.22059/jcamech.2015.53389
Hamedi, Mohsen, Eisazadeh, Hamid. (1393). 'Numerical Simulation of Nugget Geometry and Temperature Distribution in Resistance Spot Welding', , 46(1), pp. 13-19. doi: 10.22059/jcamech.2015.53389
Hamedi, Mohsen, Eisazadeh, Hamid. Numerical Simulation of Nugget Geometry and Temperature Distribution in Resistance Spot Welding. , 1393; 46(1): 13-19. doi: 10.22059/jcamech.2015.53389

Numerical Simulation of Nugget Geometry and Temperature Distribution in Resistance Spot Welding

Journal of Computational Applied Mechanics
مقاله 2، دوره 46، شماره 1، 2015، صفحه 13-19    اصل مقاله (807 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jcamech.2015.53389
نویسندگان
Mohsen Hamedi* 1؛ Hamid Eisazadeh2
1Associate Professor, School of Mechanical Engineering, University of Tehran, Tehran, Iran
2MS Graduate, School of Mechanical Engineering, University of Tehran, Tehran, Iran
چکیده
Resistance spot welding is an important manufacturing process in the automotive industry for assembling bodies. The quality and strength of the welds and, by extension, the body is mainly defined by the quality of the weld nuggets. The most effective parameters in this process are sheet material, geometry of electrodes, electrode force, current intensity, welding time and sheet thickness. The present research examined the effect of process parameters on nugget formation. A mechanical/ electrical/ thermal coupled model was created in a finite element analysis environment. The effect of welding time and current, electrode force, contact resistivity and sheet thickness was simulated to investigate the effect of these parameters on temperature of the faying surface. The physical properties of the material were defined as nonlinear and temperature dependent. The shape and size of the weld nuggets were computed and compared with experimental results from published articles. The proposed methodology allows prediction of the quality and shape of the weld nuggets as process parameters are varied. It can assist in adjusting welding parameters that eliminates the need for costly experimentation. This process can be economically optimized to manufacture quality automotive bodies.
کلیدواژه‌ها
nugget size؛ resistance spot welding؛ thermo-electro-mechanical analysis
مراجع
آمار
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