Assessing Machinability and Surface characteristics of a Shape Memory Alloy (SMA) Processed through Wire Electro Spark Erosion Method
In this paper, a study was carried out to investigate the surface roughness and material removal rate of low carbon NiTi shape memory alloy (SMA) machined by Wire Electro Spark Erosion (WESE) technique. Experiments are designed considering three parameters viz, spark ON time (SON), spark OFF time (S...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2022-08-01
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| Series: | Archives of Metallurgy and Materials |
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| Online Access: | https://journals.pan.pl/Content/124016/PDF/AMM-2022-3-15-Khan%20M.pdf |
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| author | Ebenezer George Adam Khan M. Chellaganesh Duraipandi Winowlin Jappes J.T. Julfikar Haider |
| author_facet | Ebenezer George Adam Khan M. Chellaganesh Duraipandi Winowlin Jappes J.T. Julfikar Haider |
| author_sort | Ebenezer George |
| collection | DOAJ |
| description | In this paper, a study was carried out to investigate the surface roughness and material removal rate of low carbon NiTi shape memory alloy (SMA) machined by Wire Electro Spark Erosion (WESE) technique. Experiments are designed considering three parameters viz, spark ON time (SON), spark OFF time (SOFF), and voltage (V) at three levels each. The surface roughness increased from 2.1686 μm to 2.6869 μm with an increase in both SON time, SOFF time and a decrease in voltage. The material removal rate increased from 1.272 mm3/min to 1.616 mm3/min with an increase in SON time but a varying effect was observed the SOFF time and voltage were varied. The analysis revealed that the intensity and duration of the spark had an unswerving relation with the concentration of the microcracks and micropores. More microcracks and micropores were seen in the combination of SON = 120 µs, voltage = 30 V. The concentration of the microcracks and micropores could be minimised by using an appropriate parameter setting. Therefore, considering the surface analysis and material removal, the low carbon NiTi alloy is recommended to machine with 110 μs – 55 μs – 30 v (SON – SOFF – V respectively), to achieve better surface roughness with minimal surface damage. |
| first_indexed | 2024-04-13T01:33:36Z |
| format | Article |
| id | doaj.art-e131711ab29447f3a5ad4ddf24d4ba40 |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-04-13T01:33:36Z |
| publishDate | 2022-08-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-e131711ab29447f3a5ad4ddf24d4ba402022-12-22T03:08:26ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092022-08-01vol. 67No 3921930https://doi.org/10.24425/amm.2022.139684Assessing Machinability and Surface characteristics of a Shape Memory Alloy (SMA) Processed through Wire Electro Spark Erosion MethodEbenezer George0https://orcid.org/0000-0002-8516-8560Adam Khan M.1https://orcid.org/0000-0003-4014-9611Chellaganesh Duraipandi2Winowlin Jappes J.T.3Julfikar Haider4School of Automotive and Mechanical Engineering and Centre for Surface Engineering, Kalasalingam Academy of Research and Education, Tamil Nadu, IndiaSchool of Automotive and Mechanical Engineering and Centre for Surface Engineering, Kalasalingam Academy of Research and Education, Tamil Nadu, IndiaSchool of Automotive and Mechanical Engineering and Centre for Surface Engineering, Kalasalingam Academy of Research and Education, Tamil Nadu, IndiaSchool of Automotive and Mechanical Engineering and Centre for Surface Engineering, Kalasalingam Academy of Research and Education, Tamil Nadu, IndiaManchester Metropolitan University, Advanced Materials and Surface Engineering (AMSE) Research Centre, Chester Street, M1 5GD, UKIn this paper, a study was carried out to investigate the surface roughness and material removal rate of low carbon NiTi shape memory alloy (SMA) machined by Wire Electro Spark Erosion (WESE) technique. Experiments are designed considering three parameters viz, spark ON time (SON), spark OFF time (SOFF), and voltage (V) at three levels each. The surface roughness increased from 2.1686 μm to 2.6869 μm with an increase in both SON time, SOFF time and a decrease in voltage. The material removal rate increased from 1.272 mm3/min to 1.616 mm3/min with an increase in SON time but a varying effect was observed the SOFF time and voltage were varied. The analysis revealed that the intensity and duration of the spark had an unswerving relation with the concentration of the microcracks and micropores. More microcracks and micropores were seen in the combination of SON = 120 µs, voltage = 30 V. The concentration of the microcracks and micropores could be minimised by using an appropriate parameter setting. Therefore, considering the surface analysis and material removal, the low carbon NiTi alloy is recommended to machine with 110 μs – 55 μs – 30 v (SON – SOFF – V respectively), to achieve better surface roughness with minimal surface damage.https://journals.pan.pl/Content/124016/PDF/AMM-2022-3-15-Khan%20M.pdfwire electro spark erosionmachiningniti alloysurface roughnessmaterial removal rate (mrr) |
| spellingShingle | Ebenezer George Adam Khan M. Chellaganesh Duraipandi Winowlin Jappes J.T. Julfikar Haider Assessing Machinability and Surface characteristics of a Shape Memory Alloy (SMA) Processed through Wire Electro Spark Erosion Method Archives of Metallurgy and Materials wire electro spark erosion machining niti alloy surface roughness material removal rate (mrr) |
| title | Assessing Machinability and Surface characteristics of a Shape Memory Alloy (SMA) Processed through Wire Electro Spark Erosion Method |
| title_full | Assessing Machinability and Surface characteristics of a Shape Memory Alloy (SMA) Processed through Wire Electro Spark Erosion Method |
| title_fullStr | Assessing Machinability and Surface characteristics of a Shape Memory Alloy (SMA) Processed through Wire Electro Spark Erosion Method |
| title_full_unstemmed | Assessing Machinability and Surface characteristics of a Shape Memory Alloy (SMA) Processed through Wire Electro Spark Erosion Method |
| title_short | Assessing Machinability and Surface characteristics of a Shape Memory Alloy (SMA) Processed through Wire Electro Spark Erosion Method |
| title_sort | assessing machinability and surface characteristics of a shape memory alloy sma processed through wire electro spark erosion method |
| topic | wire electro spark erosion machining niti alloy surface roughness material removal rate (mrr) |
| url | https://journals.pan.pl/Content/124016/PDF/AMM-2022-3-15-Khan%20M.pdf |
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