THREE-DIMENSIONAL SHAPE PARTS BY ENVIRONMENTAL-FRIENDLY MANUFACTURING METHOD OF THREE-DIMENSIONAL SHAPE PRESS PARTS

摘要

The present invention relates to a three-dimensional part manufactured according to a manufacturing method of an eco-friendly three-dimensional press part, and a material supply step of supplying a strip-shaped material, a processing body part in the middle part of the width direction of the material, and a processing body part An outer punching step of perforating the material so as to form a bridge part connected to the edge of the , a drawing step of drawing the processing body to have a flange part connected to the end of the cylindrical part, and central hole punching to form a central hole in the center of the cylindrical part Step, a precision drawing step of drawing the processing body with a smaller amount of deformation in the drawing step, and a product separation step of separating the product having a structure including a cylindrical portion and a flange portion from the material by cutting the boundary between the bridge portion and the flange portion It is characterized in that it is manufactured according to