FEED DRIVE CONDITION MONITORING USING MODAL PARAMETERS

Abstract

Ball screws and linear guides are among the key components of machine tools. Abrasive wear causes a loss in stiffness of these components over time affecting the attainable manufacturing precision and, eventually, leads to failures and costly down-time. In order to control these effects, the condition of the crucial feed drive components needs to be monitored. This paper shows, how the feed drive condition can be monitored by looking at the modal parameters of the system. It will be shown, that preload loss cannot only be detected globally, but can be traced back to the worn component. A distinct test cycle was developed for this purpose.

Recommended articles

INVESTIGATION ON THE PRODUCTIVITY OF MILLING TI6AL4V WITH CRYOGENIC MINIMUM QUANTITY LUBRICATION

D. Gross, M. Appis, N. Hanenkamp
Keywords: Carbon dioxide; Cryogenic; CMQL; Ti6Al4V; Milling; Spray test

MATERIAL REMOVAL MODE IN 3D MICRO USM

Y. Chen, Z. Yu, G. Li, S. Lei, N. Wataru
Keywords: Micromachining; Ultrasonic vibration; Material removal mode; 3D micro cavity; Surface roughness

STRATEGY OF MILLING CENTER THERMAL ERROR COMPENSATION USING A TRANSFER FUNCTION MODEL AND ITS VALIDATION OUTSIDE OF CALIBRATION RANGE

M. Mares, O. Horejs, S. Fiala, Ch. Lee, S. M. Jeong, K. H. Kim
Keywords: Thermal error; Compensation; Accuracy; Machine tool; Cutting process

INFLUENCE OF BOTH RAKE AND FLANK FACES METAL WORKING FLUID (MWF) STRATEGIES ON MACHINABILITY OF Ti-6Al-4V ALLOY

A. Kummamkandath, A. Duchosal, A. Morandeau, R. Serra, R. Leroy
Keywords: Cryogenic machining; Rake and flank application; CO2; Ti-6Al-4V; Machinability; Surface integrity; Chip microstructure