Effect of Si Content on Turning Machinability of Al-Si Binary Alloy Castings
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- Kamiya Masatsugu
- Department of Mechanical Engineering and Materials Science, Yokohama National University
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- Yakou Takao
- Department of Mechanical Engineering and Materials Science, Yokohama National University
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- Sasaki Tomohiro
- Department of Mechanical Engineering and Materials Science, Yokohama National University
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- Nagatsuma Yoshiki
- Department of Mechanical Engineering and Materials Science, Yokohama National University
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The effect of eutectic Si or primary Si on the machinability of Al-Si alloy castings, where eutectic Si or primary Si was served to improve the chip breakability were investigated. To enhance chip breakability, eutectic Si made the chips thin, and cracks that formed in primary Si during machining acted as nuclei for chip breaking. Eutectic Si had a stronger effect on surface roughness than primary Si, and eutectic Si reduced the adhesion on the cutting edge. The decrease in adhesion on the cutting edge led to a corresponding decrease in surface roughness. The cracking of primary Si was responsible for the increase in surface roughness in hypereutectic alloys. Tool wear increased with increasing amount of eutectic Si. In hypereutectic alloys, tool wear was accelerated by the contact between the tool and cracked primary Si.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 49 (3), 587-592, 2008
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204249697152
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- NII論文ID
- 10021145153
- 130004453946
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 9413169
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- 本文言語コード
- en
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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