Title:
パンチ金型
Document Type and Number:
Japanese Patent JP5567254
Kind Code:
B2
Abstract:
Provided are a slug float-up preventing method and a punch tool in performing a punching process on a plate-shaped workpiece (W) by cooperation between a punch tool (1) and a die tool (25), in which the workpiece is pressed onto an upper surface of the die tool by use of a plate holder (7) provided on the punch tool, part of the workpiece is punched out into a die hole (27) in the die tool by use of a punch blade (13) provided on the punch tool, a large amount of fluid is blown from a portion of a hole already processed on the workpiece toward a lower side of the punch blade (13) when the punch blade (13) is being lifted and is located above a lower surface of the workpiece and below an upper surface of the workpiece, and a small piece of slug located below the punch blade is dropped into the die hole (27).
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Inventors:
Takuya Okamoto
Application Number:
JP2008037670A
Publication Date:
August 06, 2014
Filing Date:
February 19, 2008
Export Citation:
Assignee:
Amada Co., Ltd.
Amada Tool Technica Co., Ltd.
Amada Tool Technica Co., Ltd.
International Classes:
B21D28/00
Domestic Patent References:
| JP6087036A | ||||
| JP2004202515A | ||||
| JP3014014U | ||||
| JP1197023A | ||||
| JP2000153320A | ||||
| JP2048217U | ||||
| JP9029354A | ||||
| JP10146624A |
Attorney, Agent or Firm:
Hidekazu Miyoshi