发明名称 Verfahren und Vorrichtung zur Herstellung eines Laminatteils
摘要 <p>In a method and apparatus for stamping a laminated product from a laminate comprising a base covered by a viscoelastic material, deformation of the base, and squeeze-out of the visco-elastic material from the periphery of the stamped products is eliminated by providing a protruding edge member projecting from one of: - (a) the laminate-contacting surface of a stamping punch; (b) the periphery of the hole of a stamping die; (c) the laminate-contracting surface of a member movable under resilient bias in the die hole; and penetrating the viscoelastic layer with the protruding edge.</p>
申请公布号 DE4405285(A1) 申请公布日期 1994.08.25
申请号 DE19944405285 申请日期 1994.02.19
申请人 MINNESOTA MINING AND MFG. CO., SAINT PAUL, MINN., US 发明人 OKUMA, KIYOSHI, SETAGAYA, TOKIO/TOKYO, JP;SAEGUSA, KOICHIRO, SETAGAYA, TOKIO/TOKYO, JP;SHINO, TYOZO, SETAGAYA, TOKIO/TOKYO, JP
分类号 B21D39/03;B26D7/08;B26D7/18;B26F1/14;B26F1/38;B26F1/40;B29C43/02;B29C59/02;B29C70/74;B32B37/00;B32B38/04;(IPC1-7):B29C65/70;B29C37/00;B32B31/00;B29C69/00 主分类号 B21D39/03
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