Title:
異形ダイヤモンドダイス
Document Type and Number:
Japanese Patent JP6805270
Kind Code:
B2
Abstract:
A shaped diamond die includes a polycrystalline diamond, the polycrystalline diamond having a machining hole, wherein a length D of a side of the machining hole is 100 µm or less, a corner R is 20 µm or less, the shaped diamond die includes a bearing portion, a surface roughness Sa of the bearing portion is 0.05 µm or less, and an average grain size of the polycrystalline diamond is 500 nm or less.
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Inventors:
Shinto Toshiaki
Takuya Asanuma
Takuya Asanuma
Application Number:
JP2018558979A
Publication Date:
December 23, 2020
Filing Date:
December 08, 2017
Export Citation:
Assignee:
Allied Material Co., Ltd.
International Classes:
B21C3/02
Domestic Patent References:
| JP2005254311A | ||||
| JP2012187594A | ||||
| JP2255213A | ||||
| JP9220610A | ||||
| JP5146820A |
Attorney, Agent or Firm:
Fukami patent office