The Optimum Of Pipe Bending By Using Induction Heating Processes And Equipment Parameters

Pipe bending using induction heating is one of the most advanced processes to produce bending pipe with small radius and large diameter. This paper analyzed systematically the stress state and deformation of pipe bending during bending processing. A theoretical model has been presented. The results of the thinning and thickening ratio of pipe wall thickness, bending force on the cross section of plastic deformation zone have been obtained. And the theoretical model was applied to the optimum of pipe bending by using induction heating processes and equipment parameters. The optimal parameters are the distance between fore-gyro wheel and rear-gyro wheel; the distance between fore-gyro wheel and the neutral layer on the cross section of plastic deformation; middle diameter of gyro wheel; slanting angle of gyro wheel; relative bending radius. Programming language to implement the optimization is MATLAB.This paper has also systematically analyzed the deformation of pipe bending by using induction heating applied a counter torque during bending process. The results of the thinning and thickening ratio of pipe wall thickness, bending force on the cross section of plastic deformation zone have been obtained. The paper analyzed the process of deformation and effect of the forming parameters of pipe bending by using induction heating applied a counter torque during bending process. It provided theory basis of pipe bending by using induction heating with small radius. It shows that pipe bending by using induction heating applied a counter torque can efficiently reduce the thinning ratio of pipe wall thickness.