Trial manufacturing of coining punch made of hardened die steel using a micro-cBN end mill
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- GOTO Takashi
- NS Tool Co., Ltd.
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- JIN Masahiko
- Nippon Institute of Technology
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- WATANABE Takeshi
- NS Tool Co., Ltd.
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- KOHINATA Takumi
- NS Tool Co., Ltd.
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- MURAKAWA Masao
- Nippon Institute of Technology
Bibliographic Information
- Other Title
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- cBNマイクロエンドミルによる焼入ダイス鋼製コイニングパンチの製作
- cBN マイクロ エンド ミル ニ ヨル ヤキイレ ダイス コウセイ コイニング パンチ ノ セイサク
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Abstract
The processing of herringbone grooves is required in the small hydrodynamic bearings used for hard disk drive units that are used in cellular phones and other portable information devices, which involves a complex shape, microdimensions, and a high degree of accuracy. In this study, we developed a coining process for herringbone grooves, which is effective in improving accuracy, productivity, and cost performance. We investigated the fabrication of micro-end mills for cutting of a coining punch for herringbone grooves, which is made of hardened die steel (60HRC). We fabricated a cBN micro-end mill with a diameter of 100μm, and clarified its effectiveness in cutting hardened die steel.
Journal
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- Journal of the Japan Society for Abrasive Technology
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Journal of the Japan Society for Abrasive Technology 52 (4), 209-213, 2008
The Japan Society for Abrasive Technology
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Keywords
Details 詳細情報について
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- CRID
- 1390001204334784768
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- NII Article ID
- 10021136571
- 130004494459
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- NII Book ID
- AN10192823
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- ISSN
- 18807534
- 09142703
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- NDL BIB ID
- 9452291
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed