Review article

https://doi.org/10.17559/TV-20151027130036

Formation of Built-Up Layer on the Tool in Turning Operation of Magnesium Alloys

Nikola Tomac ; Department of Electro Engineering, Automatics and Computer Science, Faculty of Maritime Studies, University of Rijeka, Studentska ulica 2, 51000 Rijeka, Croatia
Knut Sørby orcid.org/0000-0002-8394-5565 ; Department of Production and Quality Engineering, Faculty of Engineering Science and Technology, Norwegian University of Science and Technology, 7491 Trondheim, Norway
Sandro Doboviček orcid.org/0000-0001-8483-6187 ; Department of Industrial Engineering and Management, Faculty of Engineering, University of Rijeka, Studentska ulica 2, 51000 Rijeka, Croatia Croatia

Abstract

The present work highlights some factors which affect formation of a protective built-up layer (BUL) on the rake face of the cutting tool when cutting magnesium alloys. This work suggests that BUL can positively affect tool life, surface roughness, cutting speed and tool forces. The BUL is formed in cutting magnesium alloys with the PCD tool inserts at cutting speed range from 500 to 2500 m/min and at the carbide tool inserts at lower cutting speed range around 550 m/min. It has been found that deposit layers primarily have similar chemical composition as MnAl inclusions which are incorporated in the structure of the examined AZ91 magnesium alloys.

Keywords

built-up layer; machining; magnesium

Hrčak ID:

202648

URI

https://hrcak.srce.hr/202648

Publication date:

28.6.2018.

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