Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
DETERMINING SPECIFIC CUTTING ENERGY BY SPINDLE POWER WHEN MICROMILLING TI6AL4V
Submission Author:
Rodrigo Ferreira , SP
Co-Authors:
Rodrigo Ferreira, Ricardo Arai, Alessandro Rodrigues, Reginaldo Coelho
Presenter: Rodrigo Ferreira
doi://10.26678/ABCM.COBEM2021.COB2021-1250
Abstract
Micro-milling is a promising process to create microtextures on Ti-6Al-4V alloy surfaces for implants; however, tool wear is a problem. High-resolution cameras and acoustic emission sensors are some technologies used for checking wear. Most equipment used for micro-milling has a spindle with high-speed electric motors, and the acquisition of power can be an alternative to monitor the process and assist the existing techniques. This study proposes a technique for applying the Savitzky-Golay filter (SGf) to process cutting power signal when milling Ti-6Al-4V micro-slots to obtain the specific cutting energy (SCE) and monitor the power. The experiments were conducted using a high-speed electric motor, acquiring power signals during cutting. The Origin software with a smooth filter package was used to process the cutting power data. SCE values for feeds per tooth of 3, 6, 12, and 15 μm were calculated using the proposed method and compared with the primary literature. Treatment of the power signal through SGf was appropriate and enabled the use of cutting power to obtain the SCE as a function of fz. This method can be an alternative to evaluate SCE during micro-milling.
Keywords
micromilling, Specific Energy Cutting, Ti6Al4V, Savitzky-Golay
