Study of the Effects of Initial Cutting Conditions and Transition Period on Ultimate Tool Life when Machining Inconel 718
Rapid tool wear and limited tool life are major problems when machining Inconel 718, which still need further attention. Amongst the reported strategies, limited studies have been reported on optimizing initial cutting conditions by means of tool life improvement. Therefore, in this work, the tool w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/3/592 |
| _version_ | 1797406832269983744 |
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| author | Morvarid Memarianpour Seyed Ali Niknam Sylvain Turenne Marek Balazinski |
| author_facet | Morvarid Memarianpour Seyed Ali Niknam Sylvain Turenne Marek Balazinski |
| author_sort | Morvarid Memarianpour |
| collection | DOAJ |
| description | Rapid tool wear and limited tool life are major problems when machining Inconel 718, which still need further attention. Amongst the reported strategies, limited studies have been reported on optimizing initial cutting conditions by means of tool life improvement. Therefore, in this work, the tool wear progress and tool life were investigated by varying the initial conditions in the transition period, which was set at four seconds. The transition point was discovered by previous works by the authors. After the transition point, similar cutting conditions were used as the reference condition. The tool wear morphology and size were recorded and analyzed in each condition. It was revealed that applying a lower cutting speed and feed rate in the transition period led to improved tool life as compared to the reference condition. In other words, the use of optimum levels of cutting parameters in the transition period of the cutting process may enhance tool life at higher cutting time. For instance, initial feed rate (0.15 mm/rev) and cutting speed (25 m/min) led to the improvement in the ultimate tool life by about 67% and 50%, respectively. Besides, applying the lower initial cutting speed, i.e., 25 m/min, increased the tool life by about 50% when the insert reached the maximum flank wear (<i>v</i><sub>Bmax</sub>) of 300 µm in comparison with those at higher initial cutting speeds. This phenomenon may lead to better insight into the effect of the influence of the initial cutting conditions in the transition period on tool life when machining hard-to-cut materials. Moreover, the built-up edge (BUE) was exhibited as the primary wear mode in all cutting conditions. |
| first_indexed | 2024-03-09T03:31:22Z |
| format | Article |
| id | doaj.art-4825ea3f697c4fb3bde1794e15949eb3 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T03:31:22Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-4825ea3f697c4fb3bde1794e15949eb32023-12-03T14:54:13ZengMDPI AGMaterials1996-19442021-01-0114359210.3390/ma14030592Study of the Effects of Initial Cutting Conditions and Transition Period on Ultimate Tool Life when Machining Inconel 718Morvarid Memarianpour0Seyed Ali Niknam1Sylvain Turenne2Marek Balazinski3Mechanical Engineering Department, Polytechnique Montreal, Montreal, QC H3T 1J4, CanadaMechanical Engineering Department, Polytechnique Montreal, Montreal, QC H3T 1J4, CanadaMechanical Engineering Department, Polytechnique Montreal, Montreal, QC H3T 1J4, CanadaMechanical Engineering Department, Polytechnique Montreal, Montreal, QC H3T 1J4, CanadaRapid tool wear and limited tool life are major problems when machining Inconel 718, which still need further attention. Amongst the reported strategies, limited studies have been reported on optimizing initial cutting conditions by means of tool life improvement. Therefore, in this work, the tool wear progress and tool life were investigated by varying the initial conditions in the transition period, which was set at four seconds. The transition point was discovered by previous works by the authors. After the transition point, similar cutting conditions were used as the reference condition. The tool wear morphology and size were recorded and analyzed in each condition. It was revealed that applying a lower cutting speed and feed rate in the transition period led to improved tool life as compared to the reference condition. In other words, the use of optimum levels of cutting parameters in the transition period of the cutting process may enhance tool life at higher cutting time. For instance, initial feed rate (0.15 mm/rev) and cutting speed (25 m/min) led to the improvement in the ultimate tool life by about 67% and 50%, respectively. Besides, applying the lower initial cutting speed, i.e., 25 m/min, increased the tool life by about 50% when the insert reached the maximum flank wear (<i>v</i><sub>Bmax</sub>) of 300 µm in comparison with those at higher initial cutting speeds. This phenomenon may lead to better insight into the effect of the influence of the initial cutting conditions in the transition period on tool life when machining hard-to-cut materials. Moreover, the built-up edge (BUE) was exhibited as the primary wear mode in all cutting conditions.https://www.mdpi.com/1996-1944/14/3/592tool wearInconel 718turningbuilt-up edge |
| spellingShingle | Morvarid Memarianpour Seyed Ali Niknam Sylvain Turenne Marek Balazinski Study of the Effects of Initial Cutting Conditions and Transition Period on Ultimate Tool Life when Machining Inconel 718 Materials tool wear Inconel 718 turning built-up edge |
| title | Study of the Effects of Initial Cutting Conditions and Transition Period on Ultimate Tool Life when Machining Inconel 718 |
| title_full | Study of the Effects of Initial Cutting Conditions and Transition Period on Ultimate Tool Life when Machining Inconel 718 |
| title_fullStr | Study of the Effects of Initial Cutting Conditions and Transition Period on Ultimate Tool Life when Machining Inconel 718 |
| title_full_unstemmed | Study of the Effects of Initial Cutting Conditions and Transition Period on Ultimate Tool Life when Machining Inconel 718 |
| title_short | Study of the Effects of Initial Cutting Conditions and Transition Period on Ultimate Tool Life when Machining Inconel 718 |
| title_sort | study of the effects of initial cutting conditions and transition period on ultimate tool life when machining inconel 718 |
| topic | tool wear Inconel 718 turning built-up edge |
| url | https://www.mdpi.com/1996-1944/14/3/592 |
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