| Autor: |
احسان مهرابی گوهری, میلاد محمدی, مصطفی نوذری, حسین باقرپور |
| Předmět: |
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| Zdroj: |
Modares Mechanical Engineering; Jun2019, Vol. 19 Issue 5, p1475-1482, 8p |
| Abstrakt: |
Welding by laser beams is one of the essential parts of production process in automobile manufacturing used for joining plates. In this paper, for the first time, simulation of pulsed laser welding process of joining stainless steel to low carbon steel was carried out. For this purpose, at first, thermal analysis was carried out by finite element method and with exact definition of thermal resource; temperature profile and the dimensions of the melting area was gained as results. This was followed by mechanical analysis. The thermal analysis results were stored in a mechanical element as history to obtain the thermal conditions of the material. As results of this analysis, the strain of elastic and plastic as well as the amount of residual stress was obtained. The results show that low carbon steel passes through higher range heat in cooling process, because of higher thermal conductivity. Also, low carbon steel saves more residual stress due to higher yield stress. For validation of simulated model, two plates of 304 stainless steel with similar parameters with the simulated model were welded by laser welding. Comparing the results obtained from the experimental model with the simulated model shows a very good agreement. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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