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On the stability of high-speed milling with spindle speed variation [PDF]
International Journal of Advanced Manufacturing Technology, 2009 Spindle speed variation is a well-known technique to suppress regenerative machine tool vibrations, but it is usually considered to be effective only for low spindle speeds. In this paper, the effect of spindle speed variation is analyzed in the high-speed domain for spindle speeds corresponding to the first flip (period doubling) and to the first Hopf
Tamás Insperger +2 more
exaly +5 more sources
SUPPRESSION OF PERIOD DOUBLING CHATTER IN HIGH-SPEED MILLING BY SPINDLE SPEED VARIATION [PDF]
Machining Science and Technology, 2011 Spindle speed variation is a well known technique to suppress regenerative machine tool vibrations, but it is usually considered to be effective only for low spindle speeds. In the current paper, spindle speed variation is applied to the high speed milling process, at the spindle speeds where the constant speed cutting results in period doubling ...
Tamás Insperger +2 more
exaly +4 more sources
Sustainable optimization of drilling performance in Al6061–B4C composites: process–property interactions for lightweight engineering applications [PDF]
Scientific ReportsThe demand for sustainable lightweight materials in automotive and aerospace sectors necessitates the development of metal matrix composites with optimized machinability and performance.
B. S. Nithyananda +3 more
doaj +2 more sources
An Experimental Investigation of the Effects of Spindle Speed Variation on Tool Wear in Turning
Procedia CIRP, 2012 AbstractSpindle Speed Variation (SSV) is a well known technique to suppress regenerative chatter vibration both in turning and milling operations but a lack of knowledge regarding the effects of non stationary cutting conditions is still limiting its diffusion in the industrial scenario.
Paolo Albertelli
exaly +3 more sources
On the mechanics of chip formation in Ti–6Al–4V turning with spindle speed variation
International Journal of Machine Tools and Manufacture, 2014 Abstract Titanium alloys are hard-to-cut materials and need to be machined at relatively low cutting speeds with obvious negative consequences on the profitability of machining. In order to enhance material removal rate (MRR), a strategy that relies on higher depths of cut could be chosen if vibrational issues due to regenerative chatter did not ...
Paolo Albertelli +2 more
exaly +3 more sources
Procedia Manufacturing, 2018 Abstract Continuous spindle speed variation, especially under sinusoidal speed law, is a well-known effective and flexible technique to suppress chatter vibration by disrupting regenerative effect in high-lobe-number zone. In most researches, its optimal design parameters (i.e.
Yasuhiro Kakinuma, Shuntaro Yamato
exaly +2 more sources
Tribological Analysis of a Radial Plain Bearing [PDF]
Robotica & Management, 2022 The paper presents experimental determination of the friction coefficient variation at a radial plain bearing, depending on the values of the radial force R and the angular speed ω of the spindle at a constant lubricant temperature value.
Daniel-Gheorghe Vela +2 more
doaj +1 more source
Machines, 2023 The surface accuracy of a multistep rotary shaft is very important in manufacturing and the assembly process of the high-speed motorized spindle of CNC machine tools, which is closely related to the machined dimensional variation induced by the turning ...
Ang Tian, Xueming Du, Shun Liu, Sun Jin
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Control of Chatter by Spindle Speed Variation in High-Speed Milling [PDF]
Advanced Materials Research, 2010 High-speed milling operations are often limited by regenerative vibrations. The aim of this paper is to analyze the effect of spindle speed variation on machine tool chatter in high-speed milling. The stability analysis of triangular and sinusoidal shape variations is made numerically with the semi-discretization method.
Seguy, Sébastien +3 more
openaire +3 more sources
Shock and Vibration, 2020 The paper studies the characterization and evaluation technology of rotation accuracy of hydrostatic spindle under the influence of unbalance. The dynamic model of the motion error of the hydrostatic spindle is established based on the dynamic parameters.
Dongju Chen, You Zhao, Jingfang Liu
doaj +1 more source