Evaluation of Hole Quality in Hardened Steel with High-Speed Drilling Using Different Cooling Systems
This work evaluates the hole quality on AISI H13 hardened steel using high-speed drilling. Specimens were machined with new and worn out drills with 8.6 mm diameter and (TiAl)N coating. Two levels of cutting speed and three levels of cooling/lubrication systems (flooded, minimum lubrication quantity...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2011-01-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1155/2011/746535 |
| _version_ | 1818415592985591808 |
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| author | Lincoln Cardoso Brandão Frederico Ozanan Neves Gregório Christo Nocelli |
| author_facet | Lincoln Cardoso Brandão Frederico Ozanan Neves Gregório Christo Nocelli |
| author_sort | Lincoln Cardoso Brandão |
| collection | DOAJ |
| description | This work evaluates the hole quality on AISI H13 hardened steel using high-speed drilling. Specimens were machined with new and worn out drills with 8.6 mm diameter and (TiAl)N coating. Two levels of cutting speed and three levels of cooling/lubrication systems (flooded, minimum lubrication quantity, and dry) were used. The hole quality is evaluated on surface roughness (Ra) parameter, diameter error, circularity, and cylindricity error. A statistical analysis of the results shows that the cooling/lubrication system significantly affects the hole quality for all measured variables. This analysis indicates that dry machining produces the worst results. Higher cutting speeds not only prove beneficial to diameter error and circularity errors, but also show no significant difference on surface roughness and cylindricity errors. The effects of the interaction between the cooling/lubrication systems, tool wear, and cutting speed indicate that only cylindricity error is influenced. Thus, the conclusion is that the best hole quality is produced with a higher cutting speed using flooded or minimum lubrication quantity independent of drill wear. |
| first_indexed | 2024-12-14T11:37:27Z |
| format | Article |
| id | doaj.art-06db03d47a8342ddba1e9df98194cd38 |
| institution | Directory Open Access Journal |
| issn | 1687-8132 |
| language | English |
| last_indexed | 2024-12-14T11:37:27Z |
| publishDate | 2011-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-06db03d47a8342ddba1e9df98194cd382022-12-21T23:02:57ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322011-01-01310.1155/2011/74653510.1155_2011/746535Evaluation of Hole Quality in Hardened Steel with High-Speed Drilling Using Different Cooling SystemsLincoln Cardoso BrandãoFrederico Ozanan NevesGregório Christo NocelliThis work evaluates the hole quality on AISI H13 hardened steel using high-speed drilling. Specimens were machined with new and worn out drills with 8.6 mm diameter and (TiAl)N coating. Two levels of cutting speed and three levels of cooling/lubrication systems (flooded, minimum lubrication quantity, and dry) were used. The hole quality is evaluated on surface roughness (Ra) parameter, diameter error, circularity, and cylindricity error. A statistical analysis of the results shows that the cooling/lubrication system significantly affects the hole quality for all measured variables. This analysis indicates that dry machining produces the worst results. Higher cutting speeds not only prove beneficial to diameter error and circularity errors, but also show no significant difference on surface roughness and cylindricity errors. The effects of the interaction between the cooling/lubrication systems, tool wear, and cutting speed indicate that only cylindricity error is influenced. Thus, the conclusion is that the best hole quality is produced with a higher cutting speed using flooded or minimum lubrication quantity independent of drill wear.https://doi.org/10.1155/2011/746535 |
| spellingShingle | Lincoln Cardoso Brandão Frederico Ozanan Neves Gregório Christo Nocelli Evaluation of Hole Quality in Hardened Steel with High-Speed Drilling Using Different Cooling Systems Advances in Mechanical Engineering |
| title | Evaluation of Hole Quality in Hardened Steel with High-Speed Drilling Using Different Cooling Systems |
| title_full | Evaluation of Hole Quality in Hardened Steel with High-Speed Drilling Using Different Cooling Systems |
| title_fullStr | Evaluation of Hole Quality in Hardened Steel with High-Speed Drilling Using Different Cooling Systems |
| title_full_unstemmed | Evaluation of Hole Quality in Hardened Steel with High-Speed Drilling Using Different Cooling Systems |
| title_short | Evaluation of Hole Quality in Hardened Steel with High-Speed Drilling Using Different Cooling Systems |
| title_sort | evaluation of hole quality in hardened steel with high speed drilling using different cooling systems |
| url | https://doi.org/10.1155/2011/746535 |
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