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Study of vibration milling for improving surface finish of difficult-to-cut materialsOstaševičius, Vytautas ...This work studies the influence of high-frequency excitation of a cutting tool during end milling of workpieces made of difficult-to-cut metallic alloys. It is demonstrated that high-frequency ... vibrations superimposed onto the continuous movement of the tool lead to milling process stabilization with superior surface finish in comparison to conventional machining. A finite element model of the vibration milling tool was built and verified experimentally. The model treats the tool as an elastic pre-twisted structure (mill cutter) characterised by its natural vibration modes. The resonance frequencies of the axial vibration mode of cutters of two different lengths were predicted numerically and subsequently used for excitation of the vibration milling tool during cutting experiments. Qualitative and quantitative characterization of the surface quality of the machined stainless steel and titanium alloys was performed. Measurement results have confirmed that excitation of a specific tool mode is a prerequisite for achieving maximal efficiency of the vibration milling process. Statistical analysis of the collected roughness measurement data identified factors that most significantly contribute to the improved surface finish of the workpieces.Vir: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Vol. 59, no. 6, Jun. 2013, str. 351-357, SI 67)Vrsta gradiva - članek, sestavni delLeto - 2013Jezik - angleškiCOBISS.SI-ID - 13073947
Avtor
Ostaševičius, Vytautas |
Gaidys, Rimvydas |
Dauksevicius, Rolanas |
Mikuckyte, Sandra
Teme
vibracijsko odrezovanje |
model s končnimi elementi |
vnaprej zavite konzole |
aksialnost |
hrapavost |
visokotrdne kovinske zlitine |
vibration cutting |
finite element model |
pre-twisted cantilever |
axial mode |
roughness
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vir: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Vol. 59, no. 6, Jun. 2013, str. 351-357, SI 67)
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Ostaševičius, Vytautas | ![]() |
Gaidys, Rimvydas | ![]() |
Dauksevicius, Rolanas | ![]() |
Mikuckyte, Sandra | ![]() |
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