Direct drilling of cemented tungsten carbide using diamond-coated carbide drill under ultrasmall feed rates

Material type: 文書・図像類

Author: Masato, OKADAほか

Publisher: 公益社団法人精密工学会/The Japan Society for Precision Engineering

Publication date: 2019-10-05

Material Format: Digital

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Note (General)：: This study provides an investigation of the cutting mechanisms and drilling characteristics of cemented tungsten carbide using a diamond-coated carbid...

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Material Type: 文書・図像類
Title: Direct drilling of cemented tungsten carbide using diamond-coated carbide drill under ultrasmall feed rates
Author/Editor: Masato, OKADA
Ryosuke, SHIDA
Hidehito, WATANABE
Takuya, MIURA
Masaaki, OTSU
Author Heading: Masato, OKADA
Ryosuke, SHIDA
Hidehito, WATANABE
Takuya, MIURA
Masaaki, OTSU
Publication, Distribution, etc.: 公益社団法人精密工学会/The Japan Society for Precision Engineering
Publication Date: 2019-10-05
Publication Date (W3CDTF): 2019-10-05
Periodical title: 精密工学会誌/Journal of the Japan Society for Precision Engineering
No. or year of volume/issue: 85 10
Volume: 85
Issue: 10
Pages: 866-872
ISSN (Periodical Title): ISSN : 1882-675X
ISSN : 0912-0289
Text Language Code: eng
Subject Heading: cemented carbide
diamond-coated carbide drill
thrust force
tool wear behavior
drilled hole quality
Target Audience: 一般
Note (General): This study provides an investigation of the cutting mechanisms and drilling characteristics of cemented tungsten carbide using a diamond-coated carbide drill under an ultrasmall feed rate. The thrust force, cutting edge shape, chip morphology, and drilled hole quality were evaluated. A diamond-coated carbide drill with two flutes, a diameter of 1.0 mm, and a coating thickness of 20 µm was applied. The thrust force was drastically decreased until the -10th drilling for various cutting conditions. Diamond coating flaking was only observed on the rake face immediately after the onset of cutting, and a sharp cutting edge was generated on the ridgeline of the diamond coating section on the flank face. The flaking region of the diamond coating on the rake face was extended from around the corner edge with increasing drilling number. The cutting performance was maintained until the -300th drilling, even though minimal flaking and chipping of the cutting edge also occurred on the flank face. The thrust force also sharply decreased when the diamond coating flaking around the chisel edge occurred. A sufficient inner surface integrity of the drilled hole was obtained, although the drilled hole diameter changed within the hole by transferring the contour of drill, which is flaking the diamond coating around corner edge and margin, to the drilled hole shape.
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=24685&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=24685&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Related Material (DOI): 10.2493/jjspe.85.866
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ