Title:
微細鍛造加工方法および液体噴射ヘッドの製造方法
Document Type and Number:
Japanese Patent JP4349282
Kind Code:
B2
Abstract:
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 etc. that is produced by using the fine forming method. A fine forging method for forming groove-shaped recesses 33 that are arranged at a prescribed pitch. After groove-shaped recesses 33 are formed tentatively in a material plate 55 by a first punch 51a in which tentative forming punches 51b are arranged, finish forming is performed on the tentatively formed groove-shaped recesses 33 by using a second punch 51c in which finish forming punches 51d are arranged. An end portion of a projection strip 53c or 53d is formed with slant faces 63 and 64 or a slant face 65, whereby an end portion of each groove-shaped recess 33 is formed precisely. A liquid ejection head 1 produced by the above method exhibits stable liquid ejection characteristics and its manufacturing cost can be reduced by virtue of simplified working of forging.
Inventors:
Akabane Fujio
Eiko Takashima
Kazushige Feather
Ryoji Uesugi
Yasunori Koike
Eiko Takashima
Kazushige Feather
Ryoji Uesugi
Yasunori Koike
Application Number:
JP2004519304A
Publication Date:
October 21, 2009
Filing Date:
July 09, 2003
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B21D22/02; B21D17/02; B21D28/00; B21D28/24; B21J5/00; B21J5/02; B21J5/12; B21J13/02; B21K1/00; B21K1/76; B41J2/045; B41J2/055; B41J2/14; B41J2/16
Domestic Patent References:
| JP2000263799A | ||||
| JP2001071044A | ||||
| JP6226975A | ||||
| JP56011130A | ||||
| JP61232028A | ||||
| JP55014283A |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Fujitsuna Hideyoshi
Osamu Suzawa
Fujitsuna Hideyoshi
Osamu Suzawa