Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
AN ANALYSIS OF VIBRATION AND WORKPIECE SURFACE QUALITY IN THE MILLING PROCESS
Submission Author:
Tobias Anderson Guimarães , MG
Co-Authors:
Tobias Anderson Guimarães, RAPHAEL SILVA LINS, Luciano Fernandes, Paulo Sergio Martins, Marcio Bacci Da Silva
Presenter: RAPHAEL SILVA LINS
doi://10.26678/ABCM.COBEM2023.COB2023-0070
Abstract
The workpiece surface quality in the milling process depends on the mechanical vibration generated during the machining and the cutting parameters. In this work, it was studied the relationship between the aluminum workpiece surface roughness, feed and the mechanical vibration produced in the milling process. In this analysis, it was used several values for feed in the range of 0,33 mm/rotation until 8 mm/rotation during the metal cutting process. The mechanical vibration was measured with two accelerometers has mounted in the machine-tool close to the cutting edges. After the acquisition of the vibration data, the Root Mean Square (RMS) and the Continuous Wavelet Transform (CWT) were applied to the signals in the time domain in order to identify some amplitude modulation source caused by the milling process. For the measuring of the vibration during the machining, it was used a tool with 1 and 2 inserts and the roughness parameters Ra and Rq were used in the analysis. The results proved that the RMS value and CWT of the vibration signals measured during the process had a good correlation with the roughness parameter Rq for two cases, a tool with 1 and 2 inserts.
Keywords
Continuous wavelet transform, milling, root mean square, Surface finish, Vibration signals
