Developing new materials for electron beam melting: Experiences and challenges

Andrey Koptyug, Mikael Bäckström, Carlos Alberto Botero Vega, Vladimir Popov, Ekaterina Chudinova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

Lack of industrially available materials for additive manufacturing (AM) of metallic materials along with the promises of materials with improved or unique properties provides a strong drive for developing new process/material combinations. As powder bed technologies for metallic materials are relatively new to the market, and to some extent are only maturing, developers of new process/material combinations have certain challenges to overcome. Firstly, basic knowledge on the behavior of materials (even those well established for other applications) under extreme conditions of melting/solidification with beam-based AM methods is far from being adequate. Secondly, manufacturing of the equipment is up to date driven by industrial application, thus optimization of the AM machines for small test batches of powders is still belongs to research and development projects. Also, majority of the powder manufacturers are primarily driven by the market development, and even they are well aware of the demands imposed by the powder bed AM machines, availability of small test batches of adequate powders may be problematic or at least quite costly for the R&D oriented users. Present paper describes the experiences in developing new materials for EBM A2 machine by Arcam EBM, modified for operating with powder batches of 100-200 ml and less. In particular it discusses achievements and challenges of working with powders from different materials with specifications far beyond the range suggested by machine manufacturer. Also it discusses the possibility of using blended rather than pre-alloyed powders for achieving both composite-like and alloyed materials in the same part by steering electron beam energy deposition strategy.

Original languageEnglish
Title of host publicationTHERMEC 2018
EditorsR. Shabadi, Mihail Ionescu, M. Jeandin, C. Richard, Tara Chandra
PublisherTrans Tech Publications Ltd
Pages2190-2195
Number of pages6
ISBN (Print)9783035712087
DOIs
Publication statusPublished - 2018
Event10th International Conference on Processing and Manufacturing of Advanced Materials, 2018 - Paris, France
Duration: 9 Jul 201813 Jul 2018

Publication series

NameMaterials Science Forum
Volume941 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference10th International Conference on Processing and Manufacturing of Advanced Materials, 2018
CountryFrance
CityParis
Period9.7.1813.7.18

Keywords

  • Additive Manufacturing
  • Blended
  • Composite materials
  • Electron Beam powders
  • In situ alloying
  • Material development
  • Melting

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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