Influence of external loading on the resonant frequency shift of ultrasonic assisted turning: numerical and experimental analysis
- 50 Downloads
In this paper, a numerical and an experimental approach are established to study the influence of the machining parameters on the resonance frequency shift of ultrasonic assisted turning. The numerical model incorporates the mechanical and electrical effect on the simulation mode shape and resonance frequency of entire ultrasonic equipment. It is numerically shown that the machining parameters’ variability promotes a resonance frequency shifting, and the depth of cut is suggested to have more effect than the feed rate. Experimental results demonstrated that for the same cutting speed and different depth of cut and feed, the frequency value shifts thus compromise the surface quality. With the frequency adjustment promoted by MMM system, surface roughness improves 10 and 14%, when the feed is increased from 0.045 to 0.18 mm/rev, respectively, for a depth of cut of 1.5 mm.
KeywordsUltrasonic assisted turning Finite element analysis Resonance frequency Surface roughness
Unable to display preview. Download preview PDF.
This study was supported by FEDER/COMPETE funds and by national funds through FCT and was developed on the aim of the research Post-Doctoral grant SFRH/BPD/76680/2011. Also, this work has been supported by the FCT in the scope of the projects UID/EEA/04436/2013, by FEDER funds through the COMPETE 2020 –POCI with the reference project POCI-01-0145-FEDER-006941 and project CICECO - Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (FCT Ref. UID /CTM /50011/2013), financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement.
- 1.Grzesik W (2017) Machinability of engineering materials. In: Advanced machining processes of metallic materials. Elsevier, pp 241–264Google Scholar
- 11.Sharma V, Pandey PM (2016) Recent advances in ultrasonic assisted turning: a step towards sustainability. Cogent Eng 3. https://doi.org/10.1080/23311916.2016.1222776
- 15.Dong G, Zhang H, Zhou M, Zhang Y (2012) Experimental investigation on ultrasonic vibration assisted turning of Sicp/Al composites. Mater Manuf Process 120813105547003 . https://doi.org/10.1080/10426914.2012.709338
- 18.Guo P, Ehmann KF (2013) Development of a tertiary motion generator for elliptical vibration texturing. Precis Eng 37:364–371. https://doi.org/10.1016/j.precisioneng.2012.10.005 CrossRefGoogle Scholar
- 25.(2018) COMSOL Multiphysics. https://www.comsol.com/
- 26.Understanding Cemented Carbide (2005). SANDVIK hard materials, Stockholm, SwedenGoogle Scholar
- 27.Automation Creations, Inc. MatWeb. In: a4. http://www.matweb.com/. Accessed 26 Aug 2017
- 28.Coromant S Turning Tool catalog (2012). SANDVIK Coromant, Stockholm, SwedenGoogle Scholar
- 29.Ratnam MM (2017) 1.1 factors affecting surface roughness in finish turning. In: Comprehensive materials finishing. Elsevier, pp 1–25Google Scholar
- 31.Altintas Y (2012) Manufacturing automation: metal cutting mechanics, machine tool vibrations, and CNC design, 2nd edn. Cambridge University PressGoogle Scholar
- 32.Astašev VK, Babitsky VI, Khusnutdinova K (2007) Ultrasonic processes and machines: dynamics, control and applications, 1st edn. Springer, BerlinGoogle Scholar
- 33.Miodrag P (2002) Multifrequency ultrasonic structural actuators. Google PatentsGoogle Scholar