Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Optimization of machining parameters in the dry milling of Ni-based VAT 32® superalloy with TiAlN-TiN coated carbide inserts
Submission Author:
Emanuele Schneider Callisaya , SP
Co-Authors:
Emanuele Schneider Callisaya, Manoel Cleber de Sampaio Alves
Presenter: Emanuele Schneider Callisaya
doi://10.26678/ABCM.COBEM2021.COB2021-1877
Abstract
The variation of cutting parameters is studied to optimize the milling of the VAT 32® nickel superalloy. The VAT 32® can be applied in the manufacturing of diesel engines valves presenting superior wear resistance associated with lower production costs, however, several problems are faced during the alloy machining process leading to high energy consumption and increase of forces. To optimize the output variables of the process, this work considered the main responses of the process based on the results of power consumption and acoustic emission. To evaluate the main effects during machining it was applied the analysis of variance (ANOVA) and normality tests conducted according the design of experiments of Full-Factorial methodology. Results obtained reveal that it was possible to accomplish the VAT 32® superalloy machining through milling within standard surface quality ranges with reduction of forces to a range of optimized parameters. The coated carbide tools presented a superior performance to machine the VAT 32® by milling, being the best condition that minimizes the power consumption found for the cutting speed of 60m/min and feed of 0.10 mm/t associated with low transient peaks of acoustic emission.
Keywords
ANOVA, power consumption, acoustic emission, milling, Nickel Superalloy
