Tool life and wear mechanism when machining Hastelloy C-22HS

• Main Authors: Kadirgama K., Abou-El-Hossein K.A., Noor M.M., Sharma K.V., Mohammad B.
• Other Authors: 12761486500
• Format: Article
• Published: 2023
• Subjects: Cutting tools; Electron microscopy; Other materials; Wear testing; Behavioral research; Carbides; Chemical vapor deposition; Coated materials; Equipment; Failure analysis; Machine tools; Machining; Materials testing; Metal working tools; Physical vapor deposition; Tribology; Wear of materials; Built up edge; Current parameters; Cutting edges; Cutting parameters; Flank wear; Hastelloy; Physical vapor depositions (pvd); Tool failures; Tool life; Tool materials; Tool-failure mode; Wear mechanisms; Wear-testing; Wet conditions

This paper describes the wear mechanism and tool life when machining Hastelloy C-22HS with coated carbide. The experiment was conducted using four different cutting tool materials under wet condition - namely, Physical Vapor Deposition (PVD) coated with TiAlN; TiN/TiCN/TiN; Chemical Vapor Deposition (CVD) coated with TiN/TiCN/Al2O3; and TiN/TiCN/TiN - to study the tool behavior, in terms of wear and tool life machining of Hastelloy C-22HS. Tool failure modes and wear mechanism were examined at various cutting parameters. Flank wear, chipping, notching, plastic lowering at cutting edge, catastrophic and wear at nose were found to be the predominant tool failure for the four types of cutting tools, especially with CVD tools. Attrition/adhesion, oxidation and built-up edge (BUE) are the wear mechanisms observed in all cutting tools. The results obtained indicated that PVD cutting tools performed better than CVD cutting tools, in terms of tool life with current parameters. � 2010 Elsevier B.V.