发明名称 |
Method and apparatus for knurling a workpiece, method of molding an article with such workpiece, and such molded article |
摘要 |
<p>A method and apparatus for knurling a workpiece in which the knurl pattern has an oblique helix angle relative to the longitudinal axis of the cylindrical workpiece. Also disclosed is a method of molding a molded article with the knurled workpiece to impart the inverse of the knurl pattern onto the molded article, such a molded article, a method of forming a structured abrasive article with the molded article, and such an abrasive article. <IMAGE></p> |
申请公布号 |
EP0960685(A1) |
申请公布日期 |
1999.12.01 |
申请号 |
EP19990117866 |
申请日期 |
1995.10.05 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
HOOPMAN, TIMOTHY L.;SERVATIUS, JAMES A.;COLLINS, STANLEY B. |
分类号 |
B21H7/14;B21C37/20;B23P9/02;B24D11/00;(IPC1-7):B23P9/02 |
主分类号 |
B21H7/14 |
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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