High pressure coolant on hard turning processes
Inconel 625 was machined with a PVD coated (Ti,Al)N+(Al,Cr)2O3 carbide tool at speeds up to 60 m/min using varied coolant pressures, up to 7 MPa with and without a tail stock. The cutting forces, surface roughness (Ra) and tool wear were recorded and analysed. The results show that machining Inco...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/78816 |
| _version_ | 1826113521749852160 |
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| author | Seow, Zhi Xian |
| author2 | Yeo Swee Hock |
| author_facet | Yeo Swee Hock Seow, Zhi Xian |
| author_sort | Seow, Zhi Xian |
| collection | NTU |
| description | Inconel 625 was machined with a PVD coated (Ti,Al)N+(Al,Cr)2O3 carbide tool at
speeds up to 60 m/min using varied coolant pressures, up to 7 MPa with and without
a tail stock. The cutting forces, surface roughness (Ra) and tool wear were recorded
and analysed. The results show that machining Inconel 625 with a high pressure
coolant supply increases the cutting force components compared to dry machining.
This can be attributed to the ability of the nickel-based alloy to strain harden under
thermo-mechanical loading conditions. Vibrations during the machining process can
result in up to 30% reduction in surface quality. Cutting forces generated when
Inconel 625 was machined with high pressure, with a tail stock, are lower than when
machined without. The tools machined with high pressure coolant has a higher
failure rate at a higher coolant pressure. The higher the feed, the greater the observed
tool wear. Built up edge was the dominant kind of tool wear in the dry machining
operation. This could be due to the lack of lubricity provided by the coolant. |
| first_indexed | 2024-10-01T03:24:36Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/78816 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:24:36Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/788162023-03-04T19:07:08Z High pressure coolant on hard turning processes Seow, Zhi Xian Yeo Swee Hock School of Mechanical and Aerospace Engineering DRNTU::Engineering::Materials::Mechanical strength of materials Inconel 625 was machined with a PVD coated (Ti,Al)N+(Al,Cr)2O3 carbide tool at speeds up to 60 m/min using varied coolant pressures, up to 7 MPa with and without a tail stock. The cutting forces, surface roughness (Ra) and tool wear were recorded and analysed. The results show that machining Inconel 625 with a high pressure coolant supply increases the cutting force components compared to dry machining. This can be attributed to the ability of the nickel-based alloy to strain harden under thermo-mechanical loading conditions. Vibrations during the machining process can result in up to 30% reduction in surface quality. Cutting forces generated when Inconel 625 was machined with high pressure, with a tail stock, are lower than when machined without. The tools machined with high pressure coolant has a higher failure rate at a higher coolant pressure. The higher the feed, the greater the observed tool wear. Built up edge was the dominant kind of tool wear in the dry machining operation. This could be due to the lack of lubricity provided by the coolant. Bachelor of Engineering (Mechanical Engineering) 2019-06-28T08:35:50Z 2019-06-28T08:35:50Z 2019 Final Year Project (FYP) http://hdl.handle.net/10356/78816 en Nanyang Technological University 81 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Mechanical strength of materials Seow, Zhi Xian High pressure coolant on hard turning processes |
| title | High pressure coolant on hard turning processes |
| title_full | High pressure coolant on hard turning processes |
| title_fullStr | High pressure coolant on hard turning processes |
| title_full_unstemmed | High pressure coolant on hard turning processes |
| title_short | High pressure coolant on hard turning processes |
| title_sort | high pressure coolant on hard turning processes |
| topic | DRNTU::Engineering::Materials::Mechanical strength of materials |
| url | http://hdl.handle.net/10356/78816 |
| work_keys_str_mv | AT seowzhixian highpressurecoolantonhardturningprocesses |