CVD-coated tungsten carbide solutions for turning Inconel 718

• Type: Article in International Conference Proceedings Book
• Date: 2024

Authors

Teixeira, A (Author) Other; Sousa, VFC (Author) Other; Silva, TEF (Author) Other; Figueiredo, D (Author) Other; Marques, F (Author) Other; Fernandes, C (Author) Other; Abilio M P De Jesus (Author) FEUP; Reis, A (Author) Other

Conference proceedings International

Title: Procedia Structural Integrity

Pages: 352-366

5th International Conference on Structural Integrity, ICSI 2023

Funchal, 29 August 2023 through 1 September 2023

Indexing

Scopus - 1 Citation

Other information

Authenticus ID: P-010-670

DOI: 10.1016/j.prostr.2024.01.042

Abstract (EN): Inconel 718 is used in many industry sectors, particularly, in the aerospace, automotive and energy industries. This alloy is selected due to its excellent mechanical properties and stability at high temperatures. However, this material is considered difficult to machine. Its high-strength, low thermal conductivity, and tendency to work-hardening, makes the machining of this material quite challenging, generally causing high amounts of tool-wear. To surpass these processing problems, usually, coated tungsten carbide tools are used for machining Inconel 718, due to their high-hardness and wear resistance. In the present work, finishing turning experiments were conducted on Inconel 718 alloy, using TiAlSiN coated WC-Co tools at different cutting parameters. Different values of feed and cutting speed were used. Tool-wear was assessed and characterized, as well as the machined surface quality. Additionally, cutting forces were measured and evaluated, trying to establish relations between the cutting forces and observed tool-wear. It was found that for lower cutting speeds the registered force values were higher, particularly for worn tools. Tool-wear also seemed to increase these cutting force values. Furthermore, numerical simulations of the cutting process, using finite element method, was performed. These simulations were conducted aiming for the prediction of tool-wear and to compare the developed cutting forces with the obtained through this method. A low error value was obtained for the comparison of the force values, and an accurate tool wear distribution was obtained. © 2023 The Authors. Published by Elsevier B.V.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14