Optimization of process parameters for WEDM of Inconel 825 using grey relational analysis
Inconel 825 is high nickel-chromium-based superalloy which retains its mechanical properties and exhibits good corrosion and oxidation resistance at elevated temperature. Inconel 825 is extensively used for making aircraft engine parts like combustor casing and turbine blades in aero space industry....
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| Format: | Article |
| Language: | English |
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Growing Science
2018-09-01
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| Series: | Decision Science Letters |
| Subjects: | |
| Online Access: | http://www.growingscience.com/dsl/Vol7/dsl_2018_6.pdf |
| _version_ | 1818757247273009152 |
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| author | Pawan Kuma Meenu Vineet Kuma |
| author_facet | Pawan Kuma Meenu Vineet Kuma |
| author_sort | Pawan Kuma |
| collection | DOAJ |
| description | Inconel 825 is high nickel-chromium-based superalloy which retains its mechanical properties and exhibits good corrosion and oxidation resistance at elevated temperature. Inconel 825 is extensively used for making aircraft engine parts like combustor casing and turbine blades in aero space industry. This research proposed the Response Surface Methodology with GRA to optimize multiple responses during Wire-cut EDM of Inconel 825. At optimum combination of input parameters i.e. A4B1C1D5E4F2, increase in MRR from 36.13 mm2/min to 41.822 mm2/min, decrease in SR from 2.842μm to 2.445μm and decrease in WWR from 0.01832 to 0.01758 was obtained. Experimental results showed that pulse-on time, wire feed, pulse-off time, and peak current significantly affected the MRR, and surface integrity of specimen and electrode with the formation of craters, pockmarks, debris, micro cracks, and recast layer. The optimal parametric combination obtained from the present study will be advantageous for working on high strength; high thermal conductivity and low melting point materials like nickel alloys. |
| first_indexed | 2024-12-18T06:07:54Z |
| format | Article |
| id | doaj.art-3f3bb4357f1748279b92514f21cd5e6a |
| institution | Directory Open Access Journal |
| issn | 1929-5804 1929-5812 |
| language | English |
| last_indexed | 2024-12-18T06:07:54Z |
| publishDate | 2018-09-01 |
| publisher | Growing Science |
| record_format | Article |
| series | Decision Science Letters |
| spelling | doaj.art-3f3bb4357f1748279b92514f21cd5e6a2022-12-21T21:18:29ZengGrowing ScienceDecision Science Letters1929-58041929-58122018-09-017440541610.5267/j.dsl.2018.1.006Optimization of process parameters for WEDM of Inconel 825 using grey relational analysisPawan KumaMeenuVineet KumaInconel 825 is high nickel-chromium-based superalloy which retains its mechanical properties and exhibits good corrosion and oxidation resistance at elevated temperature. Inconel 825 is extensively used for making aircraft engine parts like combustor casing and turbine blades in aero space industry. This research proposed the Response Surface Methodology with GRA to optimize multiple responses during Wire-cut EDM of Inconel 825. At optimum combination of input parameters i.e. A4B1C1D5E4F2, increase in MRR from 36.13 mm2/min to 41.822 mm2/min, decrease in SR from 2.842μm to 2.445μm and decrease in WWR from 0.01832 to 0.01758 was obtained. Experimental results showed that pulse-on time, wire feed, pulse-off time, and peak current significantly affected the MRR, and surface integrity of specimen and electrode with the formation of craters, pockmarks, debris, micro cracks, and recast layer. The optimal parametric combination obtained from the present study will be advantageous for working on high strength; high thermal conductivity and low melting point materials like nickel alloys.http://www.growingscience.com/dsl/Vol7/dsl_2018_6.pdfInconel 825Sprint cut WEDMMachining CharacteristicsResponse surface methodologyGrey Relational Analysis |
| spellingShingle | Pawan Kuma Meenu Vineet Kuma Optimization of process parameters for WEDM of Inconel 825 using grey relational analysis Decision Science Letters Inconel 825 Sprint cut WEDM Machining Characteristics Response surface methodology Grey Relational Analysis |
| title | Optimization of process parameters for WEDM of Inconel 825 using grey relational analysis |
| title_full | Optimization of process parameters for WEDM of Inconel 825 using grey relational analysis |
| title_fullStr | Optimization of process parameters for WEDM of Inconel 825 using grey relational analysis |
| title_full_unstemmed | Optimization of process parameters for WEDM of Inconel 825 using grey relational analysis |
| title_short | Optimization of process parameters for WEDM of Inconel 825 using grey relational analysis |
| title_sort | optimization of process parameters for wedm of inconel 825 using grey relational analysis |
| topic | Inconel 825 Sprint cut WEDM Machining Characteristics Response surface methodology Grey Relational Analysis |
| url | http://www.growingscience.com/dsl/Vol7/dsl_2018_6.pdf |
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