On the Influence of Binder Material in PCBN Cutting Tools for Turning Operations of Inconel 718

• Type: Article in International Scientific Journal
• Date: 2023

Authors

Matos, F (Author) Other; Silva, TEF (Author) Other; Sousa, VFC (Author) Other; Marques, F (Author) Other; Figueiredo, D (Author) Other; Silva, FJG (Author) Other; Abilio M P De Jesus (Author) FEUP

Journal

Title: Metals

Vol. 3

Final page: 934

Publisher: MDPI

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-00Y-G19

DOI: 10.3390/met13050934

Abstract (EN): Inconel 718 is a highly valued material in the aerospace and nuclear industries due to the fact of its exceptional properties. However, the processing of this material is quite difficult, especially through machining processes. Machining this material results in rapid tool wear, even when low material removal rates are considered. In this study, instrumented turning experiments were employed to evaluate the machinability of Inconel 718 alloy using PCBN tools while assessing the usage of two distinct binder phases, TiN and TiC, for those cutting tools. It was found that the tool life was highly sensitive to the cutting speeds but also affected by the workpiece mechanical properties. At lower cutting speeds, notch wear significantly impacted the tool integrity, whereas at higher cutting speeds, flank wear was the primary failure mode of the tool. The flank wear of the tools with TiN-based binder outperformed TiC by almost 30%, presenting a more consistent behavior when machining.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 19