A4 Conference proceedings

Circular Economy Concept in Additive Manufacturing


LUT Authors / Editors

Publication Details
Authors: Reijonen Joni, Haapalainen Mika, Jokinen Antero, Puukko Pasi, Lagerbom Juha, Lindroos Tomi, Salminen Antti
Publication year: 2017
Language: English
Title of parent publication: Euro PM2017 Proceedings
ISBN: 978-1-899072-49-1
JUFO-Level of this publication: 0
Open Access: Not an Open Access publication

Abstract


Recently, there has been increasing concern about the
sustainability of the manufacturing industry, one of the major consumers of
energy and raw materials, and therefore, a major producer of greenhouse gas
emissions and waste. Additive manufacturing (AM) inherently generates less
waste than the conventional manufacturing. In this study, the goal was to apply the
concept of circular economy into AM, by recovering process side-streams back to
the feedstock material for Selective Laser Melting. The objective was to prepare powder from 100 % scrap
feedstock following two routes: 1) mechanical milling of agglomerated residue
powder, and 2) gas atomization of solid scrap without extra alloying to
compensate possible alloy losses. The powder properties were analysed and test
specimens for the determination of mechanical properties were made from the
prepared powders and commercial reference powder. Conducted test series show
that with recycled powders properties fully comparable to reference can be
achieved.


Last updated on 2018-19-10 at 07:55