Wear Characteristics of Vitrified Bonded CBN Wheels in Grinding Mild Steel.
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- ZHAO Xuexiao
- 学生会員 東北大学大学院
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- SYOJI Katsuo
- 正会員 東北大学工学部
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- KURIYAGAWA Tsunemoto
- 正会員 東北大学工学部
Bibliographic Information
- Other Title
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- 軟鋼研削におけるビトリファイボンドCBNホイールの異常摩耗
- ナンコウ ケンサク ニ オケル ビトリファイドボンド CBN ホイール ノ イ
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Abstract
This paper investigates the wear mechanism of a vitrified bonded CBN wheel in grinding mild steel (SS400). Wheel wear after grinding mild steel is extremely large compared to cast iron (FC200), hardened steel (S45C) or high-speed steel (SKH57), even though the grinding force is small. It became clear that the wheel wear increases under the condition of longer arc contact. Furthermore, a single grain cutting test reveals that the actual chip length of SS400 almost doubles compared to the SKH57 or FC200 chip, and that the chips are very brittle. Therefore it seems that the chips do not erode the bond material directly. Through SEM observations of the wheel and workpiece surfaces before and after grinding, it was found that SS400 chips are easily loaded into the chip pockets on the wheel surface, and there are many deposited chips and embedded CBN grits on the ground surface. These phenomena, therefore, indicate the possibility of the consecutive fracture of CBN grits, and lead to the severe wear of CBN wheel.
Journal
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- Journal of the Japan Society for Precision Engineering
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Journal of the Japan Society for Precision Engineering 62 (8), 1117-1121, 1996
The Japan Society for Precision Engineering
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Details 詳細情報について
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- CRID
- 1390001204764714624
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- NII Article ID
- 110001372064
- 10010080852
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- NII Book ID
- AN1003250X
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- ISSN
- 1882675X
- 09120289
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- NDL BIB ID
- 4011894
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed