Effect of the Process Parameters on the Machinability Characteristics of a CoCrMo Alloy

Abstract:

The paper investigates the machinability characteristics of the CoCrMo alloy ASTM F1537, usually utilized for the production of joint replacements and fixation devices thanks to its high strength, good wear and corrosion resistance, and excellent biocompatibility. This research work intends to overcome the lack of literature data about this alloy machinability, even if its use in the biomedical sector is intensive and it is usually subjected to various machining operations for the implants production. Orthogonal cutting tests were carried out under both dry and lubricated conditions at different cutting speeds and feeds typical of finishing operations. The alloy machinability was analysed in terms of tool wear, cut surface integrity, and chip morphology. In particular, the cut surface integrity was evaluated through its mechanical properties, metallurgical state and topological parameters, highlighting the influence of the process parameters.

• Periodical: Key Engineering Materials (Volumes 554-557)
• Pages: 1976-1983
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.554-557.1976
• Online since: June 2013
• Authors: Stefania Bruschi, Andrea Ghiotti, Alberto Bordin
• Keywords: Cobalt Alloy, Cutting, Machinability

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