发明授权
- 专利标题: Tube drawing method and apparatus
- 专利标题(中): 管抽出方法和装置
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申请号: US3765215D申请日: 1972-01-21
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公开(公告)号: US3765215A公开(公告)日: 1973-10-16
- 发明人: MARTIN G
- 申请人: ALUMINUM CO OF AMERICA
- 专利权人: Aluminum Co Of America
- 当前专利权人: Aluminum Co Of America
- 优先权: US21964172 1972-01-21
- 主分类号: B21C1/04
- IPC分类号: B21C1/04 ; B21C1/24 ; B21C1/10 ; B21D3/00
摘要:
A method and apparatus for drawing tubular stock continuously and simultaneously through at least two successive drawing dies having mandrels located in the dies and within the tubular stock. The method comprises the steps of continuously pulling the tubular stock through the first one of the dies by a rotating capstan containing turns of the stock, the capstan simultaneously directing the stock to the second of one of the dies. From the second die, the stock is continuously pulled, the pulling of the stock continuously through the dies effecting a simultaneous reduction of the cross sectional area of the stock, with a single pass of the stock through the dies.
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