发明名称 |
Fine forging method, manufacturing method of liquid ejection head, and liquid ejection head |
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.
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申请公布号 |
US2005188736(A1) |
申请公布日期 |
2005.09.01 |
申请号 |
US20050031353 |
申请日期 |
2005.01.10 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
AKAHANE FUJIO;TAKASHIMA NAGAMITSU;HAKEDA KAZUSHIGE;UESUGI RYOJI;KOIKE YASUNORI |
分类号 |
B21D17/02;B21D28/24;B21J5/00;B21J5/12;B21K1/00;B41J2/14;B41J2/16;(IPC1-7):B21D28/24 |
主分类号 |
B21D17/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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