With the high load operation of the mechanical transmission system,the performance of high-strength steel has been put forward to better requirements,and its flexural resilience is one of the factors that cannot be ignored in the processing process.The Draw-bending bending springback test platform was constructed and the springback test results of Q345GJB high strength steel under different roll radius and tensioning force were compared by laser scanning method.The results show that when the bending radius remains unchanged,the rebound Angle decreases with increasing the tension force.When the tension force remains constant,the rebound Angle decreases continuously with the increase of bending radius.With the increase of tensioning force,the bending radius of the roller is smaller,and the thickness and section radius of the characteristic parts show a decreasing trend.The research is helpful to improve the working efficiency of bending machine in the field of forging and laying a certain theoretical basis for the subsequent parame-ter optimization.
Q345GJB high strength steelDrawing and bendingTension forceYield criterionLaser scan-ning
万方数据
维普
