Energy-Based Analysis of Ultrasonically Assisted Turning
The process of ultrasonically-assisted turning (UAT) is a superposition of vibration of a cutting tool on its standard movement in conventional turning (CT). The former technique has several advantages compared with the latter, one of the main being a significant decrease in the level of cutting for...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2011-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-2010-0606 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832565037245399040 |
|---|---|
| author | G.A. Volkov V.A. Bratov A.A. Gruzdkov V.I. Babitsky Y.V. Petrov V.V. Silberschmidt |
| author_facet | G.A. Volkov V.A. Bratov A.A. Gruzdkov V.I. Babitsky Y.V. Petrov V.V. Silberschmidt |
| author_sort | G.A. Volkov |
| collection | DOAJ |
| description | The process of ultrasonically-assisted turning (UAT) is a superposition of vibration of a cutting tool on its standard movement in conventional turning (CT). The former technique has several advantages compared with the latter, one of the main being a significant decrease in the level of cutting forces. In this paper the effects observed in UAT are analysed employing ideas of dynamic fracture mechanics. The active stage of loading duration depends heavily on ultrasonic frequency and the cutting speed; he application of the fracture criterion based on the notion of incubation time makes it possible to calculate a dependence of this duration on its threshold amplitude. An estimation of energy, necessary to create a threshold pulse in the material, is made by solving the contact Hertz problem. The obtained time dependence of energy has a marked minimum. Thus, the existence of energy-efficient loading duration is demonstrated. This explains the decrease in the cutting force resulting from superimposed ultrasonic vibration. The obtained results are in agreement with experiments on ultrasonic assisted machining of aluminium and Inconel 718 alloy. |
| format | Article |
| id | doaj-art-7d618629cf8d4315a064d83b06f1fb42 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-7d618629cf8d4315a064d83b06f1fb422025-02-03T01:09:31ZengWileyShock and Vibration1070-96221875-92032011-01-01181-233334110.3233/SAV-2010-0606Energy-Based Analysis of Ultrasonically Assisted TurningG.A. Volkov0V.A. Bratov1A.A. Gruzdkov2V.I. Babitsky3Y.V. Petrov4V.V. Silberschmidt5St.-Petersburg State University, St.-Petersburg, RussiaInstitute for Problems of Mechanical Engineering RAS, St.-Petersburg, RussiaSt.-Petersburg State Technological Institute, St.-Petersburg, RussiaWolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough, Leics., LE11 3TU, UKInstitute for Problems of Mechanical Engineering RAS, St.-Petersburg, RussiaWolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough, Leics., LE11 3TU, UKThe process of ultrasonically-assisted turning (UAT) is a superposition of vibration of a cutting tool on its standard movement in conventional turning (CT). The former technique has several advantages compared with the latter, one of the main being a significant decrease in the level of cutting forces. In this paper the effects observed in UAT are analysed employing ideas of dynamic fracture mechanics. The active stage of loading duration depends heavily on ultrasonic frequency and the cutting speed; he application of the fracture criterion based on the notion of incubation time makes it possible to calculate a dependence of this duration on its threshold amplitude. An estimation of energy, necessary to create a threshold pulse in the material, is made by solving the contact Hertz problem. The obtained time dependence of energy has a marked minimum. Thus, the existence of energy-efficient loading duration is demonstrated. This explains the decrease in the cutting force resulting from superimposed ultrasonic vibration. The obtained results are in agreement with experiments on ultrasonic assisted machining of aluminium and Inconel 718 alloy.http://dx.doi.org/10.3233/SAV-2010-0606 |
| spellingShingle | G.A. Volkov V.A. Bratov A.A. Gruzdkov V.I. Babitsky Y.V. Petrov V.V. Silberschmidt Energy-Based Analysis of Ultrasonically Assisted Turning Shock and Vibration |
| title | Energy-Based Analysis of Ultrasonically Assisted Turning |
| title_full | Energy-Based Analysis of Ultrasonically Assisted Turning |
| title_fullStr | Energy-Based Analysis of Ultrasonically Assisted Turning |
| title_full_unstemmed | Energy-Based Analysis of Ultrasonically Assisted Turning |
| title_short | Energy-Based Analysis of Ultrasonically Assisted Turning |
| title_sort | energy based analysis of ultrasonically assisted turning |
| url | http://dx.doi.org/10.3233/SAV-2010-0606 |
| work_keys_str_mv | AT gavolkov energybasedanalysisofultrasonicallyassistedturning AT vabratov energybasedanalysisofultrasonicallyassistedturning AT aagruzdkov energybasedanalysisofultrasonicallyassistedturning AT vibabitsky energybasedanalysisofultrasonicallyassistedturning AT yvpetrov energybasedanalysisofultrasonicallyassistedturning AT vvsilberschmidt energybasedanalysisofultrasonicallyassistedturning |