公开(公告)号：US20070216736A1

公开(公告)日：2007-09-20

申请号：US11751449

申请日：2007-05-21

申请人： Fujio AKAHANE ,  Nagamitsu TAKASHIMA ,  Kazushige HAKEDA ,  Ryoji UESUGI ,  Yasunori KOIKE

发明人： Fujio AKAHANE ,  Nagamitsu TAKASHIMA ,  Kazushige HAKEDA ,  Ryoji UESUGI ,  Yasunori KOIKE

IPC分类号： B41J2/045

CPC分类号： B21J5/00 ,  B21K1/00 ,  B21K23/00 ,  B41J2/1612 ,  B41J2/1623 ,  B41J2/1632

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.

摘要翻译： 本发明的目的是提供一种用于精确地形成凹部的凹槽并且以高精度形成用于压力产生室等的凹部形状的精细锻造方法以及通过使用精细成形方法制造的液体喷射头。 一种精细的锻造方法，用于形成以规定间距排列的槽形凹部。 在通过布置有暂时形成冲头的第一冲头在材料板中暂时形成凹槽形凹部之后，通过使用布置有精加工冲头的第二冲头对临时形成的凹槽形凹槽进行精加工。 突起条的端部形成有斜面或倾斜面，由此精确地形成每个凹槽形凹部的端部。 通过上述方法制造的液体喷射头具有稳定的液体喷射特性，并且可以通过简化的锻造加工来降低制造成本。