Manufacturing Technology 2016, 16(5):1038-1041 | DOI: 10.21062/ujep/x.2016/a/1213-2489/MT/16/5/1038

Built-up Edge Formation in Machining AlSi7Mg0.3 Alloy

Michal Martinovsky, Jan Madl, Jan Vitner
Faculty of Production Technology and Management, J. E. Purkyne Univerzity in Usti nad Labem, Pasteurova 3334/7, 400 01, Usti nad Labem, Czech Republic

One of the main problems in machining Al alloys represents built-up edge formation. This paper is focused on the effect of selected modifiers in AlSi7Mg0.3 alloy on built-up edge formation. Four variants of castings modified by strontium, calcium and antimony are used. All these alloys are compared with non-modified alloy. Built-up formation leads to the increasing of surface roughness for both types of built-up edge - unstable or stable. If unstable built-up edge is produced, surface roughness increases enormously. Therefore the research is focused on surface roughness in different cutting conditions. There were moulded castings of non-modified alloy and for each modified variant. Gravity-die castings into a metal mould with a thermal insulation were made.

Keywords: AlSi7Mg0.3 alloy, Modifiers, Machining, Built-up edge

Published: October 1, 2016  Show citation

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Martinovsky M, Madl J, Vitner J. Built-up Edge Formation in Machining AlSi7Mg0.3 Alloy. Manufacturing Technology. 2016;16(5):1038-1041. doi: 10.21062/ujep/x.2016/a/1213-2489/MT/16/5/1038.
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