Original scientific paper

https://doi.org/10.17559/TV-20170920194959

Influence of Cutting Speed and Feed Rate on the Wear of an S-Type Mixed Ceramic Tool in Turning of AISI 4140 Hardened Steel

Jeferson H. W. Nicolodi ; University of Passo Fundo (UPF), School of Engineering and Architecture, BR 285, 99052-900, Passo Fundo, Brazil
Luiz A. Consalter orcid.org/0000-0003-2409-6134 ; University of Passo Fundo (UPF), School of Engineering and Architecture, BR 285, 99052-900, Passo Fundo, Brazil
Orlando Durán ; Pontificia Universidad Católica de Valparaíso Avenida Los Carrera 01567, Quilpué, Chile
André J. Souza orcid.org/0000-0001-5649-7333 ; Federal University of Rio Grande do Sul (UFRGS) Department of Mechanical Engineering (DEMEC), Rua sarmento Leite 425, 90050-170, Porto Alegre, Brazil

Abstract

In this study, the performance and the useful life of a mixed ceramic tool with S-type edge microgeometry are evaluated for the case of dry turning of AISI 4140 steel hardened to 55 HRC. The influence of the cutting speed and feed rate of the cutting parameters on the tool failure was investigated. The experiments were designed and analysed using the complete factorial design technique. Our results indicate that the cutting speed and feed rate values exert significant influence on the tool lifespan. Crater and flank wear occur in all cutting conditions. The predominant tool wear mechanisms are diffusion, abrasion, and adhesion, which are also known as attrition. The tool life curve and equation were established for the machining conditions of this investigation to achieve the subsequent optimisation of this process.

Keywords

ceramic tool; cutting parameters; tool wear and life; hardened steel turning

Hrčak ID:

223278

URI

https://hrcak.srce.hr/223278

Publication date:

25.7.2019.

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