Eventos Anais de eventos
COBEF 2021
11th Brazilian Congress on Manufacturing Engineering
TEMPERATURE MEASUREMENT IN EXTERNAL CYLINDRICAL TURNING OF THE TI-6AL-4V ALLOY
Submission Author:
Renato Nunes Cunha , MG , Brazil
Co-Authors:
Renato Nunes Cunha, Marcio Bacci Da Silva
Presenter: Renato Nunes Cunha
doi://10.26678/ABCM.COBEF2021.COB21-0011
Abstract
The study of machining processes for difficult-to-cut materials, such as titanium, has an important role in understanding the accelerated wear that affects tool life due to high process temperatures. Thus, this work aims to investigate the influence of cutting parameters on the chip-tool interface temperature measured by the tool-workpiece thermocouple method on the external cylindrical turning of the Ti-6Al-4V alloy. The work also aims to develop a methodology for calibrating the system, one of the major problems for using the method. The cutting tool used was the K10 grade carbide in the form of a properly sharpened bar. The results obtained in the calibration tests demonstrated a linear behavior in the relationship between temperature and electrical potential over the temperature range used in the calibration and obtained in the experimental tests. In addition, the calibration using the modified counter tip and the pin developed in the present work, demonstrated similar results. In the cylindrical turning tests, the cutting parameters (cutting speed, feed and cutting depth) and the lubrication-cooling condition (dry or MQL) were varied. The results obtained show that the cutting parameters directly influence the machining temperature.
Keywords
Turning, titanium, machining temperature, tool-piece thermocouple method
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