发明名称 |
SLAG RISE PREVENTING METHOD, AND PUNCH MOLD |
摘要 |
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). |
申请公布号 |
EP2165782(A4) |
申请公布日期 |
2014.01.08 |
申请号 |
EP20080752984 |
申请日期 |
2008.05.20 |
申请人 |
AMADA CO., LTD.;AMADA TOOL TECHNICA CO., LTD. |
发明人 |
OKAMOTO, TAKUYA |
分类号 |
B21D28/34;B21D45/00;B23D27/00 |
主分类号 |
B21D28/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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