发明名称 Method for permanent joining of tubular members.
摘要 <p>A method for permanent connection of cylindrical members is disclosed. An inner member (1) is placed in the end of an outer member (3) and this outer member is exposed to a radial, shearing deformation in the connecting zone under formation of discrete ring shaped grooves (4). The groove's bottom part protrudes down to the inner member wall and develops plastic deformation of this wall.</p>
申请公布号 EP0134566(A2) 申请公布日期 1985.03.20
申请号 EP19840109844 申请日期 1984.08.17
申请人 NORSK HYDRO ASA 发明人 CLAUSEN, EDVIN LIST
分类号 B21D39/04;F16L13/16;(IPC1-7):F16L13/14 主分类号 B21D39/04
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