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Investigations Of Aging Behaviour From Aluminum Powders During A Atmosphere Simulation Of The LBM Process.

  • : Dominik Bauer1
  • : 1Airbus Group Innovations
  • : PDF Download
  • : 2016

Abstract

Additive layer Manufacturing (ALM) offers for production of parts and components for aeronautic applications potential cost benefits over convential manufacturing routes. In particular, powder bed processes offer a high degree of design flexibility while enabling weight reduction due to topological optimization. Quality and properties of the parts are strongly dependent on the powder quality which, in turn , is influenced by handling and storage of the powder.

For the investigations aluminum powder (Al-Si-Mg) was aged under atmosphere of different moitures and temperatures for defined duration. As well as the flowability on behave of this influence was investigated. The effect of vacuum drying on the flowability was investigated. Prior to this the chemistry of the powder was measured by inductively coupled plasma optical emission spectrometry (ICP-OES) and carrier gas hot extraction. The morphology was evaluated by scanning electron microscope (SEM). Results clearly demonstrate the feasibility to reuse dried condensed powders.

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