書誌事項
- タイトル別名
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- Damage of Cutting Tools After Cutting 60HRC Hardened Cold Work Tool Steel
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説明
Pre-hardened steel of 40HRC is normally used in plastic mold. Because there is no need to adjust dimensional change after heat treatment. However, pre-hardened steel over 50HRC is not common due to poor machinability. For improving their machinability, TiAlN or TiN coated cutting tools after cutting several types of 60HRC hardened cold work tool steel were investigated through SEM, EPMA, and TEM. The final aim is to realize pre-hardened steel of 60HRC. The results showed the following : First, flank wear was reduced by decreasing primary carbides of steel. Second, there were plastic deformation areas of TiN coating after cutting all types of steel. Third, the plastic deformation and chipping of cutting tools were prevented by Al based oxide and MnS made from the steel as protective film. Finally, Al based oxide could be used in a wide temperature range. Moreover, MnS inclusion prevented deposition of Fe on the cutting tools during the cutting of steel. These results suggest that it is possible to create 60HRC hardened cold work tool steel of good machinability by decreasing primary carbides of steel and using Al based oxide and MnS made from the steel as protective film.
収録刊行物
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- 精密工学会誌
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精密工学会誌 82 (4), 372-377, 2016
公益社団法人 精密工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204830643840
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- NII論文ID
- 130005143559
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- ISSN
- 1882675X
- 09120289
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可