Powder bed generation in integrated modelling of additive layer manufacturing of orthopaedic implants

Krzyzanowski, Michal and Svyetlichnyy, D. and Stevenson, G. and Rainforth, W. Mark (2016) Powder bed generation in integrated modelling of additive layer manufacturing of orthopaedic implants. Journal of Advanced Manufacturing Technology. ISSN 0268-3768

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Abstract

This paper presents an original model of powder
bed generation developed within the frame of an integrated
modelling approach for studying the interaction of physical
mechanisms in additive layer manufacturing (ALM) of orthopaedic implants. The model is based on cellular automata (CA) approach and describes the relationship between moving particles of different sizes during deposition on a surface in three dimensions. The surface is defined by the horizontal two-dimensional CA on which particles fall and irreversibly stick to a growing deposit. The model allows for consideration of different restructuring cases when particles are allowed to rotate as often as necessary until achievement of a local minimum
position. Changes in the packing density of the powder
bed have been investigated numerically depending on technological parameters, such as particle size distribution, deposition rate and sequence of powder deposition. The model has been developed with the aim of merging to the finite element (FE)-based integrated model and is applicable to a different ranges of materials including metals and also non-metals.

Item Type: Article
Uncontrolled Keywords: Additive layer manufacturing . Powder bed formation . Cellular automata model . Integrated finite element-based modelling
Subjects: H100 General Engineering
Divisions: Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Advanced Systems Engineering
UoA Collections > UoA15: General Engineering
Depositing User: $ Ian McDonald
Date Deposited: 15 Dec 2016 11:30
Last Modified: 13 Apr 2017 15:20
URI: http://www.open-access.bcu.ac.uk/id/eprint/3711

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