基本信息:
- 专利标题： PUNCH HOLE FORMING METHOD AND PUNCH HOLE FORMING DEVICE
- 申请号：EP19774885.8 申请日：2019-03-29
- 公开(公告)号：EP3785819A1 公开(公告)日：2021-03-03
- 发明人： SHINKE Norihisa , ECHIGO Mitsuaki , TSUDA Yuji
- 申请人： Osaka Gas Co., Ltd.
- 申请人地址： JP Osaka-shi, Osaka 541-0046 1-2, Hiranomachi 4-chome Chuo-ku
- 代理机构： Lemcke, Brommer & Partner Patentanwälte Partnerschaft mbB
- 优先权： JP2018070339 20180330
- 国际公布： WO2019189910 20191003
- 主分类号： B21D28/34
- IPC分类号： B21D28/34 ; B21D28/24 ; B21D28/26 ; B21D37/01 ; B21D37/16
摘要：
An object of the present invention is to provide a punch hole forming method and a punch hole forming device that can suppress a decrease in the temperature of a workpiece due to a machining tool when a hole is formed by punching the workpiece using the machining tool. In the punch hole forming method, when a workpiece O that is a plate-like member having a thickness of 0.01 mm or more and 1 mm or less is placed on a die 10, and a hole is formed by punching the workpiece O in the thickness direction using a punch 20, the workpiece O is kept at a temperature TO at which the workpiece O can be punched at least during formation of the hole.
IPC结构图谱:
| B | 作业；运输 |
| --B21 | 基本上无切削的金属机械加工；金属冲压 |
| ----B21D | 金属板或管、棒或型材的基本无切削加工或处理；冲压 |
| ------B21D28/00 | 用加压切割方式成型；穿孔 |
| --------B21D28/02 | .产生或不产生碎屑的毛坯或制品的冲孔；开槽 |
| ----------B21D28/34 | ..穿孔工具；模具夹固器 |