METHOD REDUCING SPRI NGBACK OF BODY PANEL OF MOTOR VEHICLE USING UPFORM METHOD

摘要

PURPOSE: A springback reducing method for a vehicle body panel using an upforming method is provided to reduce material costs by using a smaller blank than the conventional initial blank and reduce springback of a material by employing a mold not requiring restriking. CONSTITUTION: A springback reducing method for a vehicle body panel using an upforming method comprises the steps of: determining the shape and size of a blank to leave an end amounting to the thickness of a steel sheet in the initial blanking process, forming the steel sheet with a flange mold, and upforming the steel sheet with a flange upforming mold.