Experimental Researches Concerning Evaluation of Mechanical Vibrations of Five Axes Machining Center Equipped with Rotary Tilting Table

Abstract:

Precision of the machining centers is influenced by many factors among which are mechanical vibrations that occur in the machine-tool-part-device system. Evaluation of vibration level for five axes machining centers is a very important issue considering structural and functional complexity of these equipments. The paper presents researches performed at University of Oradea to evaluate vibration of TMA-AL 550 five axes machining center, equipped with a two rotating axes table, during the machining process. There have been used two methods: evaluation of the dynamic behavior of the spindle using a laser vibrometer and evaluation of mechanical vibrations of the five axes machining center using triaxial accelerometers. Measurement data had been processed using spectral analysis and time-frequency parameters, revealing frequency domains which can cause high amplitudes of vibration. Results also show that the measured vibration levels are not exceeding the accepted limits.

• Periodical: Applied Mechanics and Materials (Volumes 809-810)
• Pages: 748-753
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.809-810.748
• Online since: November 2015
• Authors: Florin Blaga*, Mircea Bogdan Tătaru, Tiberiu Vesselenyi, Iulian Stănășel, Constantin Bungău
• Keywords: Five Axes Machining Center, Laser Vibrometer, Mechanical Vibrations, Triaxial Accelerometers

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