发明名称 Device and method for shaping flat articles
摘要 A device and a method for shaping a flat article under high pressure, in which a one-sided forming tool is used together with a high pressure press equipped with a membrane. The one-sided forming tool comprises at least one first trimming device, a second trimming device provided with a punch, and with at least two clamps arranged to hold a blank in position over said one-sided forming tool. The clamps are arranged moveable in respect to each other such that the blank is stretchable and pressure is applicable by said membrane so shaping the blank against said one-sided forming tool within a single and continuous press operation. The one-sided forming tool also comprises a piercing device. The advantage of the invention is that an article may be stretched, trimmed, shaped and pierced in one continuous forming cycle, which article may also be formed from a blank that has been pre-painted on at least one side.
申请公布号 US6178796(B1) 申请公布日期 2001.01.30
申请号 US19990321844 申请日期 1999.05.28
申请人 FLOW HOLDINGS GMBH (SAGL) LLC 发明人 HELLGREN KEIJO
分类号 B21D22/12;B21D25/02;B21D28/18;(IPC1-7):B21D28/18 主分类号 B21D22/12
代理机构 代理人
主权项
地址