Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
INFLUENCE OF COMPRESSED COLD AIR COOLING IN MILLING PROCESS WITH BARREL END MILL ON THE HARDENED STEEL
Submission Author:
Alexandre Venturi , SC , Brazil
Co-Authors:
Alexandre Venturi, Milton Polli, Gil Magno Portal Chagas
Presenter: Alexandre Venturi
doi://10.26678/ABCM.COBEM2023.COB2023-0929
Abstract
Molds and dies are components used in various industrial sectors and are typically manufactured from hardened steels with highly complex geometries. Milling with ball nose end mills is one of the most commonly used machining processes for manufacturing parts with highly complex geometries. As an alternative, barrel mills can bring significant gains in terms of quality and productivity. Nevertheless, difficulties often arise in the machining process of these components, such as prolonged machining times, high heat at the chip-tool interface, and excessive tool wear. Based on this, the present work aims to analyze the influence of the use of cold air cooling on the quality of the machined surface, machining temperatures below the machined surface, and flank wear of the TiAlN+TiN coated barrel end mill in the milling of inclined surfaces of hardened AISI H13 steel. The cooling systems adopted were compressed air and cold air applied through a vortex tube. The results show that the cooling systems used did not interfere with the temperature below the machined surface or the chip shapes. However, with the cold air-cooling system, the best surface roughness values were achieved.
Keywords
Hard milling, Barrel end mill, Vortex Tube, AISI H13.
