利用压电并联阻尼器进行镗削加工外文文献.pdfVIP

Mechanical Systems and Signal Processing 94 (2017) 312–321 Contents lists available at ScienceDirect Mechanical Systems and Signal Processing journal homepage: www.else /locate/ymssp Chatter reduction in boring process by using piezoelectric shunt damping with experimental verification Ufuk Yigit a, Ender Cigeroglu a,⇑, Erhan Budak b a The Department of Mechanical Engineering, Middle East Technical University, 06800 Ankara, Turkey b Manufacturing Research Laboratory, Sabanci University, Orhanli, 81474 Tuzla, Istanbul, Turkey a r t i c l e i n f o a b s t r a c t Article history: Chatter is a self-excited type of vibration that develops during machining due to process- Received 18 May 2016 structure dynamic interactions resulting in modulated chip thickness. Chatter is an impor- Received in revised form 3 February 2017 tant problem as it results in poor surface quality, reduced productivity and tool life. The Accepted 26 February 2017 stability of a cutting process is strongly influenced by the frequency response function Available online 14 March 2017 (FRF) at the cutting point. In this study, the effect of piezoelectric shunt damping on chatter vibrations in a boring Keywords: process is studied. In piezoelectric shunt damping method, an electrical impedance is con- Chatter nected to a piezoelectric transducer which is bonded on cutting tool. Electrical impedance Boring stabili