تعيين شرايط گرمايش در فرايند شكل دهي ورق به روش خمكاري شعله يي

DETERMINATION OF HEATING CONDITIONS IN PLATE FORMING PROCESS BY THE FLAME BENDING METHOD

In industry, the flame bending process is used to shape steel work pieces. Forming of beams and plates of the steel structures are examples of the process applications.In most cases, this process is manually done by skilled technicians. Employing parametric studies in this paper,effects of the effective parameters on the process are evaluated. For the process simulation, a thermo elastic-plastic analysis is applied. Conducting the numerical simulations and using dimensional analysis,input variables are determined. Then, using multiple regression, effective variables as well as relationship between heating parameters and residual curvature of the plate are extracted. The relation proposed here can be used to predict the magnitude of the plate deformation and to study the process automation.