Making metal powders: Part 2 – Understanding water atomisation

May 4, 2022

The Spring 2022 issue of PM Review saw the second instalment of the series ‘How to make metal powders’
The Spring 2022 issue of PM Review saw the second instalment of the series ‘How to make metal powders’

The Spring 2022 issue of PM Review saw the second instalment of the series ‘How to make metal powders’ by Joe Strauss and John Dunkley. This edition builds on the overview of atomisation technologies in the first article to provide a deep dive into water atomisation and the powders produced by this method.

This well-established technology is used to produce a wide range of metal powders for many industrial applications, including press & sinter Powder Metallurgy and Metal Injection Moulding, and is now making inroads into metal Additive Manufacturing.

The article outlines the characteristics of water atomisation – including types of water atomisers, operating pressure, system parts – as well as the characteristics of the powders produced by water atomisation which make them suitable for MIM and AM.

While water atomisation is a robust process, and one of the most commonly used atomisation techniques, there are limits to its suitability. The suitability and limitations alike are honestly reviewed and explained in the second instalment of this article series.

To learn more, read ‘How to make metal powders. Part 2: Understanding water atomisation and water atomised powders’ in PM Review, Spring 2022.

Read online or download the pdf.

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In the latest issue of Metal AM magazine

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Extensive AM industry news coverage, as well as the following exclusive deep-dive articles:

  • Metal powders in Additive Manufacturing: An exploration of sustainable production, usage and recycling
  • Inside Wayland Additive: How innovation in electron beam PBF is opening new markets for AM
  • An end-to-end production case study: Leveraging data-driven machine learning and autonomous process control in AM
  • Consolidation, competition, and the cost of certification: Insight from New York’s AM Strategies 2024
  • Scandium’s impact on the Additive Manufacturing of aluminium alloys
  • AM for medical implants: An analysis of the impact of powder reuse in Powder Bed Fusion

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