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. An outer punching step of perforating the material so as to form a bridge part connected to the edge of Step, a precision drawing step of drawing the processing body to have a smaller amount of deformation in the drawing step, and a product separation step of separating a product having a structure including a cylindrical portion and a flange portion from a material by cutting the boundary between the bridge portion and the flange portion It is characterized in that it is manufactured according to