Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Investigation of the Influence of Milling Process Parameters on the Quality of Carbon Fiber Reinforced Polymer Parts
Submission Author:
Tedni de Abreu Goulart , SP
Co-Authors:
Tedni de Abreu Goulart, jefferson de oliveira gomes, Eckart Uhlmann, Julian Polte, Tobias Neuwald
Presenter: Tedni de Abreu Goulart
doi://10.26678/ABCM.COBEM2023.COB2023-2124
Abstract
With the increasing demand for weight reduction in the automotive and aeronautic industry, carbon fiber reinforced polymers (CFRPs) have been applied as an alternative for the traditional materials. However, cutting this type of material is challenging based on the number of variables involved in the process. Therefore, the objective of this paper is to investigate the influence of the main parameters of the milling process on the quality of the final workpiece. This paper, then, presents the results of an investigation on the milling process of carbon fiber reinforced polymer (CFRP). A milling center from the company DMG-Mori, model Sauer Ultrasonic 260 was used to execute the cutting process. Two cutting tools were compared and two levels of cutting speed, feed per tooth and cutting width were tested. Besides these different parameters sets, conditions with and without ultrasonic assistance were also tested as an additional parameter. The performance level of each test was established based on the area of fiber pull-out and protrusion measured on the workpiece. Up-milling strategy present lower defects when compared to down-milling, and cutting width had no relevant influence on the process performance. Ultrasonic assistance had a positive effect on the process performance, reducing the defects sizes. Higher performance was achieved when using lower feed per tooth, and higher cutting speed resulted with up-milling and ultrasonic assistance. A regression models were generated for up- and down-milling with ultrasonic assistance and can be used to define the better parameter set-up based on the desired process performance.
Keywords
Carbon fiber reinforced polymers, milling process, process parameters, Ultrasonic Assistance
