公开(公告)号：US20040194527A1

公开(公告)日：2004-10-07

申请号：US10802815

申请日：2004-03-18

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Teikoku Kuromu Co., Ltd.

Inventor： Takanori Kurokawa ,  Kazuo Fukaya ,  Takahiro Ichikawa ,  Takashige Yoneda ,  Taketoshi Minami

IPC: B21D022/21

CPC classification number: B21D24/04 ,  Y10T428/2991

Abstract: A press molding die capable of preventing a workpiece from moving is provided. The press molding die includes a punch for pressing a workpiece; a molding die having a molding surface on which the workpiece is placed and a concave portion which is formed on the molding surface and which has a shape corresponding to the punch; a pad for pressing a part of the workpiece placed on the molding surface and which is on the periphery of the concave portion; and a micro-rough layer which is formed by performing a particulate coating process on at least one of a portion of the pad, for pressing the workpiece, and a portion of the molding surface, corresponding to the portion of the pad. Preferably, the height of roughness of the micro-rough layer is 0.01 to 0.06 mm, and the particulate coating process is performed using a silicofluoric chrome plating solution.

Abstract translation: 提供了能够防止工件移动的压制成型模具。 压模成形模具包括用于按压工件的冲头; 具有其上放置有工件的成型面的成型模具和形成在成型面上并具有与冲头相对应的形状的凹部; 用于按压位于所述成型面上并位于所述凹部的周围的所述工件的一部分的垫; 以及通过对所述垫的一部分中的至少一个进行颗粒涂覆处理，用于按压所述工件以及与所述垫的所述部分对应的所述成型表面的一部分而形成的微粗糙层。 优选地，微粗糙层的粗糙度的高度为0.01〜0.06mm，使用硅氟镀液进行微粒涂布。