Crack Penetration Layer in a Single Point Diamond Grinding of Sintered Silicon Nitride.
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- NAKAJIMA Toshikatsu
- 正会員 岡山大学工学部
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- OHASHI Kazuhito
- 正会員 岡山大学工学部
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- OKAMOTO Naoyuki
- 学生会員 岡山大学大学院 (現, 正会員三菱自動車工業 (株))
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- OKAMOTO Hirotaka
- 学生会員 岡山大学大学院 (現, TOWA (株))
Bibliographic Information
- Other Title
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- 常圧焼結窒化けい素の単粒研削によるクラック層に関する研究
- ジョウアツ ショウケツ チッカ ケイソ ノ タンリュウ ケンサク ニヨル クラ
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Abstract
The purpose of this paper is to get fundamental informations for estimating depth of crack layer under ground surface of sintered silicon nitride which is one of typical engineering ceramics. This paper proposes a estimation method of the depth of crack layer generated in a transitional cutting process, which is a fundamental phenomenon in grinding process, with a single point diamond, as a function of normal cutting force, generated groove depth, Poisson's ratio, fracture toughness and a characteristic parameter of affected structure zone based on linear fracture mechanics. And the rule of the characteristic parameter, which is decided by interference type of cutting edge, is experimentally found out. The characteristic parameter decreases with increasing groove depth in conformity with the exponential function determined by indentation characteristic and nose radius of cutting edge in spherical interference region, and it turns to constant at critical interference depth according to vertical angle of cutting edge. By applying the method in each cutting phenomenon of a cutting edge in grinding of silicon nitride, the depth of remained crack layer in a grinding process can be estimated and grinding conditions or stock removal in successive grinding process can reasonably be determined.
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 (9), 1330-1334, 1996
The Japan Society for Precision Engineering
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Keywords
Details 詳細情報について
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- CRID
- 1390001204765928960
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- NII Article ID
- 110001367769
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- NII Book ID
- AN1003250X
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- ISSN
- 1882675X
- 09120289
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- NDL BIB ID
- 4028149
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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