Invention Application
- Patent Title: Press molding die and manufacturing method of same
- Patent Title (中): 压模及其制造方法
-
Application No.: US10802815Application Date: 2004-03-18
-
Publication No.: US20040194527A1Publication Date: 2004-10-07
- Inventor: Takanori Kurokawa , Kazuo Fukaya , Takahiro Ichikawa , Takashige Yoneda , Taketoshi Minami
- Applicant: Toyota Jidosha Kabushiki Kaisha , Teikoku Kuromu Co., Ltd.
- Applicant Address: null null
- Assignee: Toyota Jidosha Kabushiki Kaisha,Teikoku Kuromu Co., Ltd.
- Current Assignee: Toyota Jidosha Kabushiki Kaisha,Teikoku Kuromu Co., Ltd.
- Current Assignee Address: null null
- Priority: JP2003-097962 20030401
- Main IPC: B21D022/21
- IPC: B21D022/21

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.
Public/Granted literature
- US07340934B2 Press molding die and manufacturing method of same Public/Granted day:2008-03-11
Information query