Influence of the cutting condition on the wear and the surface roughness in the steel AISI 4140 with mixed ceramic and diamond tool
Journal of Engineering, Design and Technology
ISSN: 1726-0531
Article publication date: 23 October 2018
Issue publication date: 27 November 2018
Abstract
Purpose
The purpose of this paper is to study the influence of the cutting conditions (cutting speed, feed rate and cutting depth) on the roughness (Ra) and on the flank wear (Vb) of the steel AISI 4140.
Design/methodology/approach
Mixed ceramic (CC650) and polycrystalline cubic boron nitride (PCBN) have been used to carry out straight turning tests under dry conditions.
Findings
The results indicate that PCBN is more efficient than mixed ceramic (Al2O3+TiC) used in terms of wear resistance regardless of the aggressiveness of the AISI 4140 at 50 hardness rockwell (HRC). Consequently, it is the most powerful. Surface quality attained with PCBN tool considerably compares with that of grinding. Even when the tool wear VB reached 0.3 mm, the majority of the recorded Ra values did not exceed 1 m at the various speeds tested. The correlation of tool wear Vb and surface roughness Ra established allows obtaining experimental empirical data on the cutting tool wear from measured surface roughness for practical use in industry. The values of constants and the coefficient of determination R2 of this mathematical model will be calculated. Mathematical models expressing the relation between the elements of the cutting regime and technological parameters (tool life and roughness) are proposed.
Originality/value
Many works have been already made in the similar manner, but this study of CC650 and PCBN wear is the first. Through this study, we propose a mathematical model expressing the relation between the elements of the cutting regime, tool life and roughness.
Keywords
Acknowledgements
Thank you very much to the National Society of Public Works Aïn Smara Constantine Algeria, units complex shovel and crane, laboratory metrology and control, and laboratory heat treatments; and ALEM (Manufacture of machine tools, mechanical tools, mechanical parts) Oued El Hamimime El Khroub – Constantine Algeria at all efforts and aids to do my experimental study.
Citation
Aouad, R. and Amara, I. (2018), "Influence of the cutting condition on the wear and the surface roughness in the steel AISI 4140 with mixed ceramic and diamond tool", Journal of Engineering, Design and Technology, Vol. 16 No. 6, pp. 828-836. https://doi.org/10.1108/JEDT-05-2018-0086
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited