发明申请
US20070216736A1 FINE FORGING METHOD, MANUFACTURING METHOD OF LIQUID EJECTION HEAD, AND LIQUID EJECTION HEAD
有权
精密锻造方法,液体喷射头和液体喷射头的制造方法
- 专利标题: FINE FORGING METHOD, MANUFACTURING METHOD OF LIQUID EJECTION HEAD, AND LIQUID EJECTION HEAD
- 专利标题(中): 精密锻造方法,液体喷射头和液体喷射头的制造方法
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申请号: US11751449申请日: 2007-05-21
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公开(公告)号: US20070216736A1公开(公告)日: 2007-09-20
- 发明人: Fujio AKAHANE , Nagamitsu TAKASHIMA , Kazushige HAKEDA , Ryoji UESUGI , Yasunori KOIKE
- 申请人: Fujio AKAHANE , Nagamitsu TAKASHIMA , Kazushige HAKEDA , Ryoji UESUGI , Yasunori KOIKE
- 申请人地址: JP Tokyo
- 专利权人: SEIKO EPSON CORPORATION
- 当前专利权人: SEIKO EPSON CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JPP2002-200087 20020709; JPP2002-227546 20020805
- 主分类号: B41J2/045
- IPC分类号: B41J2/045
摘要:
An object is to provide a fine forging method for forming partitions of recesses precisely and forming recess shapes for pressure generation chambers etc. with high accuracy as well as a liquid ejection head that is produced by using the fine forming method. A fine forging method for forming groove-shaped recesses that are arranged at a prescribed pitch. After groove-shaped recesses are formed tentatively in a material plate by a first punch in which tentative forming punches are arranged, finish forming is performed on the tentatively formed groove-shaped recesses by using a second punch in which finish forming punches are arranged. An end portion of a projection strip is formed with slant faces or a slant face, whereby an end portion of each groove-shaped recess is formed precisely. A liquid ejection head produced by the above method exhibits stable liquid ejection characteristics and its manufacturing cost can be reduced by virtue of simplified working of forging.
公开/授权文献
- US07575305B2 Liquid ejection head having improved ejection performance 公开/授权日:2009-08-18