Assessment of the Ultrasonic Machine for Surface Finishing of 3D-Printed Cobalt-Chromium Alloy by Selective Laser Melting Technology
The selective laser melting (SLM) system reaches the status of a contender with the traditional casting of dental alloys, with the essential drawback that it is conducive to roughness, making surfaces difficult to finish by the conventional method. Ultrasonic machines (USM) are instrumentally sensi...
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middle technical university
2022-11-01
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| Series: | Journal of Techniques |
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| Online Access: | https://journal.mtu.edu.iq/index.php/MTU/article/view/727 |
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| author | Mahmood Abdulla Ahmad Israa Mohammed Hummudi |
| author_facet | Mahmood Abdulla Ahmad Israa Mohammed Hummudi |
| author_sort | Mahmood Abdulla Ahmad |
| collection | DOAJ |
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The selective laser melting (SLM) system reaches the status of a contender with the traditional casting of dental alloys, with the essential drawback that it is conducive to roughness, making surfaces difficult to finish by the conventional method. Ultrasonic machines (USM) are instrumentally sensible for processes involving metal surface adjustments.
This study aims to assess the surface roughness for SLM by using USM instead of conventional finishing. The discs of cobalt chromium alloy were printed by SLM (n = 20) and evenly divided into two groups: one for finishing in compliance with the manufacturer's standard procedure, and the other for employing USM. The specimens were evaluated using the Surface Roughness Test, and the data was analyzed using the t-test.
Highly significant differences were found at P < 0.01. Furthermore, the mean value accounted for a low level of readings (Ra) in the USM group, which amounted to 1.707, and with regard to the control group, it was 4.539. Ultrasonic finishing processes promote the competence of the finishing procedure and improve the surface quality for dental cobalt chromium alloys that are printed by SLM technology.
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| format | Article |
| id | doaj-art-05d04f351d1841e5978f1c66086aa7fa |
| institution | Kabale University |
| issn | 1818-653X 2708-8383 |
| language | English |
| publishDate | 2022-11-01 |
| publisher | middle technical university |
| record_format | Article |
| series | Journal of Techniques |
| spelling | doaj-art-05d04f351d1841e5978f1c66086aa7fa2025-01-19T11:07:06Zengmiddle technical universityJournal of Techniques1818-653X2708-83832022-11-014Special Issue10.51173/jt.v4i33.727Assessment of the Ultrasonic Machine for Surface Finishing of 3D-Printed Cobalt-Chromium Alloy by Selective Laser Melting TechnologyMahmood Abdulla Ahmad0Israa Mohammed Hummudi1College of Health & Medical Technology - Baghdad, Middle Technical University, Baghdad, IraqCollege of Health & Medical Technology - Baghdad, Middle Technical University, Baghdad, Iraq The selective laser melting (SLM) system reaches the status of a contender with the traditional casting of dental alloys, with the essential drawback that it is conducive to roughness, making surfaces difficult to finish by the conventional method. Ultrasonic machines (USM) are instrumentally sensible for processes involving metal surface adjustments. This study aims to assess the surface roughness for SLM by using USM instead of conventional finishing. The discs of cobalt chromium alloy were printed by SLM (n = 20) and evenly divided into two groups: one for finishing in compliance with the manufacturer's standard procedure, and the other for employing USM. The specimens were evaluated using the Surface Roughness Test, and the data was analyzed using the t-test. Highly significant differences were found at P < 0.01. Furthermore, the mean value accounted for a low level of readings (Ra) in the USM group, which amounted to 1.707, and with regard to the control group, it was 4.539. Ultrasonic finishing processes promote the competence of the finishing procedure and improve the surface quality for dental cobalt chromium alloys that are printed by SLM technology. https://journal.mtu.edu.iq/index.php/MTU/article/view/727Cobalt-chromium alloysUltrasonic vibrationSurface roughnessFinishing |
| spellingShingle | Mahmood Abdulla Ahmad Israa Mohammed Hummudi Assessment of the Ultrasonic Machine for Surface Finishing of 3D-Printed Cobalt-Chromium Alloy by Selective Laser Melting Technology Journal of Techniques Cobalt-chromium alloys Ultrasonic vibration Surface roughness Finishing |
| title | Assessment of the Ultrasonic Machine for Surface Finishing of 3D-Printed Cobalt-Chromium Alloy by Selective Laser Melting Technology |
| title_full | Assessment of the Ultrasonic Machine for Surface Finishing of 3D-Printed Cobalt-Chromium Alloy by Selective Laser Melting Technology |
| title_fullStr | Assessment of the Ultrasonic Machine for Surface Finishing of 3D-Printed Cobalt-Chromium Alloy by Selective Laser Melting Technology |
| title_full_unstemmed | Assessment of the Ultrasonic Machine for Surface Finishing of 3D-Printed Cobalt-Chromium Alloy by Selective Laser Melting Technology |
| title_short | Assessment of the Ultrasonic Machine for Surface Finishing of 3D-Printed Cobalt-Chromium Alloy by Selective Laser Melting Technology |
| title_sort | assessment of the ultrasonic machine for surface finishing of 3d printed cobalt chromium alloy by selective laser melting technology |
| topic | Cobalt-chromium alloys Ultrasonic vibration Surface roughness Finishing |
| url | https://journal.mtu.edu.iq/index.php/MTU/article/view/727 |
| work_keys_str_mv | AT mahmoodabdullaahmad assessmentoftheultrasonicmachineforsurfacefinishingof3dprintedcobaltchromiumalloybyselectivelasermeltingtechnology AT israamohammedhummudi assessmentoftheultrasonicmachineforsurfacefinishingof3dprintedcobaltchromiumalloybyselectivelasermeltingtechnology |