Title:
成形型加工電極、成形型の製造方法及び成形型
Document Type and Number:
Japanese Patent JP4394714
Kind Code:
B2
Abstract:
In a molding die machining electrode 10, slit grooves of a molding die are machined with a slit groove forming part 22 having a substantially circular outer circumference by ranging hexagonal erected wall parts 23 in a row; while the inner circumference of a slit groove forming part 32 overlaps with the erected wall parts 23 in the outer circumference of the slit groove forming part 22, the outside slit grooves are machined with the slit groove forming part 32 having a substantially circular outer circumference. Similarly, the further outside slit grooves are machined with the slit groove forming part 42 of the third electrode 40. In such a manner, a plurality of the slit groove forming parts are radially divided and overlapping portions between the plurality of the slit groove forming parts are formed substantially coaxially with a molded body. The areas of the slit groove forming parts 22, 32, and 42 are designed to nearly similar values, suppressing the difference in wear of the electrodes.
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Inventors:
Kazumasa Kitamura
Tomoe Nagae
Tomoe Nagae
Application Number:
JP2007244063A
Publication Date:
January 06, 2010
Filing Date:
September 20, 2007
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
B23H1/04; B21C25/02; B23H9/00; B29C48/30
Domestic Patent References:
| JP2003094415A | ||||
| JP62001908U | ||||
| JP11268018A | ||||
| JP10264125A | ||||
| JP2002239844A | ||||
| JP2000024840A | ||||
| JP2002172527A |
Attorney, Agent or Firm:
Aitec International Patent Office