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公开(公告)号:US5881592A
公开(公告)日:1999-03-16
申请号:US64293
申请日:1998-04-22
申请人: Ellis Blackwell , Darrell K. Maisel
发明人: Ellis Blackwell , Darrell K. Maisel
CPC分类号: B21C1/24 , B21C3/16 , B21C37/202
摘要: A draw tool and process for producing internally finned copper tubing in which the draw tool has longitudinally extending exterior teeth and grooves having working surfaces that are shaped at interacting angles providing metal flow at tensile forces below the ultimate tensile strength of the tubing.
摘要翻译: 一种用于生产内部翅片铜管的拉丝工具和方法,其中拉伸工具具有纵向延伸的外部齿和具有工作表面的凹槽,该工作表面以相互作用的角度成形,以提供低于管的极限拉伸强度的拉伸力提供金属流动。