A comparative study on laser-assisted and conventional machining characteristics of waspaloy
Waspaloy is a nickel-based superalloy primarily used in the manufacture of compressor discs and shafts. In this study, a comparative analysis was performed on Laser-Assisted Machining (LAM) and Conventional Machining (CM) of waspaloy to evaluate the surface alterations and machining characteristics...
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Elsevier
2025-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425017636 |
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| author | Hamidreza Esrafili Hossein Amirabadi Javad Akbari Farshid Jafarian |
| author_facet | Hamidreza Esrafili Hossein Amirabadi Javad Akbari Farshid Jafarian |
| author_sort | Hamidreza Esrafili |
| collection | DOAJ |
| description | Waspaloy is a nickel-based superalloy primarily used in the manufacture of compressor discs and shafts. In this study, a comparative analysis was performed on Laser-Assisted Machining (LAM) and Conventional Machining (CM) of waspaloy to evaluate the surface alterations and machining characteristics at the various process conditions. To investigate the impact of laser beam heat beneath the workpiece surface, an initial scan was conducted without applying a cutting depth. This was done using different cutting speed and feed rate settings while keeping the laser parameters constant. The heat-affected layers (HAZ) were then analyzed, followed by the machining process. Subsequently, the cutting forces, machining temperature, surface roughness, and microhardness variations were analyzed between the LAM and CM processes. The results revealed that under laser scanning conditions, the highest temperature recorded at the laser–workpiece contact point was 729 °C, whereas in the LAM process, this temperature increased to 778 °C. Additionally, the findings showed that the presence of a Secondary HAZ resulted in higher machining forces in the LAM process, with one exception, compared to CM. The maximum cutting force in laser-assisted machining was 499 N, while for CM, it was 460 N. In LAM, the chip temperature ranged from 189 to 541 °C, while in CM, it varied from 104 to 349 °C. Surface roughness improved by up to 3.82 times in the LAM process compared to CM. Moreover, the results indicated that microhardness variations in LAM were more consistent than those observed in CM. |
| format | Article |
| id | doaj-art-6e9633dc91ec4108b1a8580a3363bfc5 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-6e9633dc91ec4108b1a8580a3363bfc52025-08-20T03:13:14ZengElsevierJournal of Materials Research and Technology2238-78542025-07-01374476448910.1016/j.jmrt.2025.07.107A comparative study on laser-assisted and conventional machining characteristics of waspaloyHamidreza Esrafili0Hossein Amirabadi1Javad Akbari2Farshid Jafarian3Ph.D. in Mechanical Engineering, Research Assistant of Precision Manufacturing Laboratory, Department of Mechanical Engineering, Sharif University of Technology, Tehran, IranFaculty of Engineering, University of Neyshabur, Neyshabur, IranDep. of Mechanical Engineering, Sharif University of Technology, Tehran, Iran; Corresponding author. Sharif University of Technology, Azadi st, Tehran, Iran.Faculty of Engineering, Mahallat Institute of Higher Education, Mahallat, IranWaspaloy is a nickel-based superalloy primarily used in the manufacture of compressor discs and shafts. In this study, a comparative analysis was performed on Laser-Assisted Machining (LAM) and Conventional Machining (CM) of waspaloy to evaluate the surface alterations and machining characteristics at the various process conditions. To investigate the impact of laser beam heat beneath the workpiece surface, an initial scan was conducted without applying a cutting depth. This was done using different cutting speed and feed rate settings while keeping the laser parameters constant. The heat-affected layers (HAZ) were then analyzed, followed by the machining process. Subsequently, the cutting forces, machining temperature, surface roughness, and microhardness variations were analyzed between the LAM and CM processes. The results revealed that under laser scanning conditions, the highest temperature recorded at the laser–workpiece contact point was 729 °C, whereas in the LAM process, this temperature increased to 778 °C. Additionally, the findings showed that the presence of a Secondary HAZ resulted in higher machining forces in the LAM process, with one exception, compared to CM. The maximum cutting force in laser-assisted machining was 499 N, while for CM, it was 460 N. In LAM, the chip temperature ranged from 189 to 541 °C, while in CM, it varied from 104 to 349 °C. Surface roughness improved by up to 3.82 times in the LAM process compared to CM. Moreover, the results indicated that microhardness variations in LAM were more consistent than those observed in CM.http://www.sciencedirect.com/science/article/pii/S2238785425017636Laser-Assisted Machining (LAM)Heat Affected Zone (HAZ)MicrohardnessSurface RoughnessCutting ForceWaspaloy |
| spellingShingle | Hamidreza Esrafili Hossein Amirabadi Javad Akbari Farshid Jafarian A comparative study on laser-assisted and conventional machining characteristics of waspaloy Journal of Materials Research and Technology Laser-Assisted Machining (LAM) Heat Affected Zone (HAZ) Microhardness Surface Roughness Cutting Force Waspaloy |
| title | A comparative study on laser-assisted and conventional machining characteristics of waspaloy |
| title_full | A comparative study on laser-assisted and conventional machining characteristics of waspaloy |
| title_fullStr | A comparative study on laser-assisted and conventional machining characteristics of waspaloy |
| title_full_unstemmed | A comparative study on laser-assisted and conventional machining characteristics of waspaloy |
| title_short | A comparative study on laser-assisted and conventional machining characteristics of waspaloy |
| title_sort | comparative study on laser assisted and conventional machining characteristics of waspaloy |
| topic | Laser-Assisted Machining (LAM) Heat Affected Zone (HAZ) Microhardness Surface Roughness Cutting Force Waspaloy |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425017636 |
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