Selected Aspects of Precision Machining on CNC Machine Tools
The work is new due to the type of process used—ultrasonic precision machining—to determine the possible effect of spindle heating (long-term machining) on the precision of the flat surface. It was carried out on a precise ultrasonic machining machine, and the material of workpiece was ceramic Al<...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/11/10/946 |
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| author | Jozef Peterka Marcel Kuruc Vitalii Kolesnyk Ivan Dehtiarov Jana Moravcikova Tomas Vopat Peter Pokorny Frantisek Jurina Vladimir Simna |
| author_facet | Jozef Peterka Marcel Kuruc Vitalii Kolesnyk Ivan Dehtiarov Jana Moravcikova Tomas Vopat Peter Pokorny Frantisek Jurina Vladimir Simna |
| author_sort | Jozef Peterka |
| collection | DOAJ |
| description | The work is new due to the type of process used—ultrasonic precision machining—to determine the possible effect of spindle heating (long-term machining) on the precision of the flat surface. It was carried out on a precise ultrasonic machining machine, and the material of workpiece was ceramic Al<sub>2</sub>O<sub>3</sub>. A flat surface was machined. Such an experiment has not been feasible until now. The experiment was divided into two days. On the first day, the machining time was 4 h. It is a long enough time to create a temperature-steady state. On the second day, with a cold tool and cold machine tool, we continued where we left off on the first day. This is how we monitored the accuracy of the dimensions of the workpiece on the plane surface. We have achieved the following: The average interface depth achieved values of 0.007089 mm and 0.003667 mm for cold and heated spindles, respectively. It means that when the spindle is not heated, the depth of the interface is higher by 93% (almost double the depth). The average standard deviation of the interface depth is 0.001683 mm and 0.000997 mm for cold and heated spindles, respectively. It means that when the spindle is not heated, the process is not as stable, and the standard deviation is higher by 69%. |
| first_indexed | 2024-03-10T21:07:03Z |
| format | Article |
| id | doaj.art-9c55c19ae57244509eba2e0c62003d22 |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-10T21:07:03Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-9c55c19ae57244509eba2e0c62003d222023-11-19T17:08:28ZengMDPI AGMachines2075-17022023-10-01111094610.3390/machines11100946Selected Aspects of Precision Machining on CNC Machine ToolsJozef Peterka0Marcel Kuruc1Vitalii Kolesnyk2Ivan Dehtiarov3Jana Moravcikova4Tomas Vopat5Peter Pokorny6Frantisek Jurina7Vladimir Simna8Faculty of Materials Science and Technology, Slovak University of Technology in Bratislava, Jána Bottu Str., 25 No., 917 23 Trnava, SlovakiaFaculty of Materials Science and Technology, Slovak University of Technology in Bratislava, Jána Bottu Str., 25 No., 917 23 Trnava, SlovakiaDepartment of Manufacturing Engineering, Machines and Tools, Sumy State University, Rymskogo-Korsakova Str., 2, 40007 Sumy, UkraineDepartment of Manufacturing Engineering, Machines and Tools, Sumy State University, Rymskogo-Korsakova Str., 2, 40007 Sumy, UkraineFaculty of Materials Science and Technology, Slovak University of Technology in Bratislava, Jána Bottu Str., 25 No., 917 23 Trnava, SlovakiaFaculty of Materials Science and Technology, Slovak University of Technology in Bratislava, Jána Bottu Str., 25 No., 917 23 Trnava, SlovakiaFaculty of Materials Science and Technology, Slovak University of Technology in Bratislava, Jána Bottu Str., 25 No., 917 23 Trnava, SlovakiaFaculty of Materials Science and Technology, Slovak University of Technology in Bratislava, Jána Bottu Str., 25 No., 917 23 Trnava, SlovakiaFaculty of Materials Science and Technology, Slovak University of Technology in Bratislava, Jána Bottu Str., 25 No., 917 23 Trnava, SlovakiaThe work is new due to the type of process used—ultrasonic precision machining—to determine the possible effect of spindle heating (long-term machining) on the precision of the flat surface. It was carried out on a precise ultrasonic machining machine, and the material of workpiece was ceramic Al<sub>2</sub>O<sub>3</sub>. A flat surface was machined. Such an experiment has not been feasible until now. The experiment was divided into two days. On the first day, the machining time was 4 h. It is a long enough time to create a temperature-steady state. On the second day, with a cold tool and cold machine tool, we continued where we left off on the first day. This is how we monitored the accuracy of the dimensions of the workpiece on the plane surface. We have achieved the following: The average interface depth achieved values of 0.007089 mm and 0.003667 mm for cold and heated spindles, respectively. It means that when the spindle is not heated, the depth of the interface is higher by 93% (almost double the depth). The average standard deviation of the interface depth is 0.001683 mm and 0.000997 mm for cold and heated spindles, respectively. It means that when the spindle is not heated, the process is not as stable, and the standard deviation is higher by 69%.https://www.mdpi.com/2075-1702/11/10/946precision machiningultrasonic milling CNC machine toolceramic workpieces |
| spellingShingle | Jozef Peterka Marcel Kuruc Vitalii Kolesnyk Ivan Dehtiarov Jana Moravcikova Tomas Vopat Peter Pokorny Frantisek Jurina Vladimir Simna Selected Aspects of Precision Machining on CNC Machine Tools Machines precision machining ultrasonic milling CNC machine tool ceramic workpieces |
| title | Selected Aspects of Precision Machining on CNC Machine Tools |
| title_full | Selected Aspects of Precision Machining on CNC Machine Tools |
| title_fullStr | Selected Aspects of Precision Machining on CNC Machine Tools |
| title_full_unstemmed | Selected Aspects of Precision Machining on CNC Machine Tools |
| title_short | Selected Aspects of Precision Machining on CNC Machine Tools |
| title_sort | selected aspects of precision machining on cnc machine tools |
| topic | precision machining ultrasonic milling CNC machine tool ceramic workpieces |
| url | https://www.mdpi.com/2075-1702/11/10/946 |
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