Application of Piezoelectric Fast Tool Servo for Turning Non-Circular Shapes Made of 6082 Aluminum Alloy
| Autor: | Wojciech Ptaszyński, Bartosz Gapiński, Marcin Pelic |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
mechatronics
fast tool servo Technology Materials science QH301-705.5 Acoustics QC1-999 Coordinate-measuring machine Machining Limit (music) Servo drive General Materials Science Turret Biology (General) Instrumentation QD1-999 Fluid Flow and Transfer Processes Process Chemistry and Technology non-circular turning process Physics General Engineering piezoelectric actuator Engineering (General). Civil engineering (General) Piezoelectricity Computer Science Applications Chemistry Transducer TA1-2040 Servo |
| Zdroj: | Applied Sciences, Vol 11, Iss 7533, p 7533 (2021) Applied Sciences Volume 11 Issue 16 |
| ISSN: | 2076-3417 |
| Popis: | The paper presents the design and testing of a new servo drive for turning non-circular shapes. The presented solution is based on a commercially available piezoelectric drive unit with a stroke equal to 1000 µm and a resonant frequency of 150 Hz. The device was used in a conventional turning lathe and installed in a tool turret. The performance of the proposed tool was tested while turning multiple non-circular contours from a cylindrical shaft made of 6082 aluminum alloy. The machining accuracy was tested online using a laser sensor and offline with a coordinate measuring machine. The additional aim of those tests was also to verify if the application of an online transducer can allow a confident preliminary assessment of as-machined geometry. The drive positioning accuracy was compensated using 6th order polynomial what resulted in the fabrication of non-circular contours with an accuracy of no less than 39.8 µm when operating below the limit frequency of the drive (< 9 Hz). It was found out that the deviations of the profile from ideal geometries increase linearly with frequency when turning at higher than the limit frequency. |
| Databáze: | OpenAIRE |
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