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1 Journal of Achievements in Materials and Manufacturing Engineering

1 2006

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Chip arrangement in the dry cutting of aluminium alloys

Rubio E. M., Camacho A. M., Sánchez-Sola J. M., Marcos M.

Journal of Achievements in Materials and Manufacturing Engineering

2006

Vol. 16, nr 1-2

164--170

Purpose: The aim of the research is make a first analysis of the chip formed in the dry turning process of AA2024 (Al-Cu) and AA7050 (Al-Zn) aluminium alloys. Design/methodology/approach: The methodology has consisted of proving a series of parameters combinations: feed rate, f, cutting speed, v, and depth of cut, d, and of analysing the different types of chip appeared during each one of them. Findings: A single classification, specific for the studied alloys, has been proposed. This classification has been built in a similar way to those recorded in ISO 3685 standards. As a result, it has been able to realise that a direct correspondence with that standards does not exist. Besides, the relationship between chip arrangement and workpiece surface finish has been studied through the comparison between chip form and Ra parameter for different cutting conditions. Research limitations/implications: A possible future work is the development of a general standard, like ISO 3685, for the rest of the aluminium alloys. Practical implications: The relationship found between chip arrangement and workpiece surface finish has an important practical implication since it allows selecting the best cutting condition combination from the points of view both the security and the economy for the established requirements in each case. Originality/value: The paper is original since the bibliographical review has allowed testing that, although works about these themes exist, none approaches the problem like it has been made in this work.