发明申请
US20160297092A1 METHOD FOR MANUFACTURING FIGURE-T SHAPED METAL PART AND FIGURE-T SHAPED METAL PART
审中-公开
用于制造图形形状的金属部件和图形形状的金属部件的方法
- 专利标题: METHOD FOR MANUFACTURING FIGURE-T SHAPED METAL PART AND FIGURE-T SHAPED METAL PART
- 专利标题(中): 用于制造图形形状的金属部件和图形形状的金属部件的方法
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申请号: US15180523申请日: 2016-06-13
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公开(公告)号: US20160297092A1公开(公告)日: 2016-10-13
- 发明人: Masakatsu SEKI
- 申请人: SEKI PRESS CO. LTD.
- 申请人地址: JP Ibaraki
- 专利权人: SEKI PRESS CO LTD.
- 当前专利权人: SEKI PRESS CO LTD.
- 当前专利权人地址: JP Ibaraki
- 优先权: JP2012-146254 20120629
- 主分类号: B26D3/28
- IPC分类号: B26D3/28 ; B21F13/00 ; B21J5/12 ; B21D39/00
摘要:
Provided are a method for manufacturing a Figure-T shaped metal part using a metal plate or a metal rod split by a method for splitting longitudinally an end part of the metal plate or the metal rod having a rectangular, polygonal, or elliptical shape, in which the length of incision in the split portion can be freely adjusted and smooth split face can be formed; a Figure-T shaped metal part manufactured by such method. The method for splitting is characterized by the process comprising the steps of securing a metal plate by pinching both sides thereof with a clamping device, or securing a metal rod by pinching at least two opposite-facing portions on the periphery thereof with a clamping device; splitting longitudinally by slitting or cleaving the metal plate, or the metal rod, by pressing a slitting punch or a cleaving punch against the face of one end of the metal plate, or the metal rod; and advancing the splitting further by repeating the same operation of pressing the same punch stated above against the cleft of the splitting; and is characterized further in that, in each time of the press-splitting operation, the position of the clamping device on at least one side is moved in advance of the next pressing by a stroke corresponding to the distance from one end of the metal plate, or the metal rod, to the distal end of a split-desired portion.