Original scientific paper

The microstructure infl uence on the chip formation process of Al-Cu alloy cast conventionally and in semi solid state

P. Kovač ; Faculty of Technical Science, University of Novi Sad, Serbia
L. Sidjanin ; Faculty of Technical Science, University of Novi Sad, Serbia
D. Rajnović ; Faculty of Technical Science, University of Novi Sad, Serbia
B. Savković ; Faculty of Technical Science, University of Novi Sad, Serbia
J. Wannasin ; Faculty of Engineering, Prince of Songkla University, Thailand

Abstract

For many metal alloys, the process of metal cutting is accompanied by extensive plastic deformation and fracture. To study this process, quick stop sectional samples of hypoeutectic Al-Cu alloy chip formation, either as conventionally cast alloy or as “semi solid metal” are used. The type of chip formation is classified according to crack formation mechanism and propagation. During cutting, in all specimens used, quasi-continuous chips with built-up edge (BUE) are obtained. The formation of BUE is undesirable since it is a highly deformed body with a semi stable top which periodically breaks away giving rise to poor workpiece surface quality.

Keywords

aluminium alloys; cutting process; chip formation; microstructure; semi solid metal

Hrčak ID:

71168

URI

https://hrcak.srce.hr/71168

Publication date:

2.1.2012.

Article data in other languages: croatian

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