書誌事項
- タイトル別名
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- On the Cutting Mechanism of Coal
- セキタン ノ セッサク キコウ ニ ツイテ
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抄録
In this paper, the authors studied on the cutting mechanism of brittle materials as gypsum, cement, rock coal blocks.<BR>Results obtained from these experiments are as follows Type of cutting mechanism changes from shear type to crack type as depth of cut and brittle index (ratioof compressive and tensile strength of material defined by the authors) increases, with larger fluctuations in cutting resistance.<BR>2 Fluctuation in cutting resistance decreases as bit width increases.<BR>3 Distance of peaks of cutting resistance increases as rake angle of bit decreases.<BR>4 Cutting resistance of brittle materials in practical cutting conditions may be concluded as the press-in resistance of cutting edge.<BR>5 When cutting brittle materials, tensile stress in the case of larger rake angle bit and shear stress in the case of smaller rake angle bit, takes the.most important role in cutting breakage occurance.
収録刊行物
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- 日本鑛業會誌
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日本鑛業會誌 76 (861), 167-172, 1960
一般社団法人 資源・素材学会
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詳細情報 詳細情報について
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- CRID
- 1390282680957755136
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- NII論文ID
- 40018292800
- 130007254435
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- NII書誌ID
- AN00188932
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- ISSN
- 21856729
- 03694194
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- NDL書誌ID
- 9158137
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- データソース種別
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- JaLC
- NDL
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- 使用不可