Missouri S&T researchers team up with Honeywell in metal Additive Manufacturing project

April 14, 2016

A team of researchers at Missouri University of Science and Technology, Missouri, USA, is collaborating with Honeywell Federal Manufacturing & Technologies, Kansas City, Missouri, on a five-year project to perform material analysis for the selective laser melting process in a metal powder bed. Dr Ming Leu, Keith and Pat Bailey Missouri Distinguished Professor of Integrated Product Manufacturing and the Director of the Intelligent Systems Center at Missouri S&T, is leading a team of seven Missouri S&T professors on the project.

ming-leu

Professor Ming Leu is leading a Missouri S&T team

to perform material analysis on the selective laser

melting process in a metal powder bed.

With equipment Honeywell purchased and installed in Toomey Hall for the $5 million project, Leu and colleagues have four research objectives: to predict the properties of the built parts, control microstructures to achieve desired properties, maximise powder reuse, and increase product sustainability.

The project consists of five tasks: powder characterisation, material property characterisation methods, temperature effects on material properties, controlling microstructure and mechanical properties and chemistry specifically for Additive Manufacturing. Stainless steel 304L is used initially as the build material.

“We look at how process parameters affect the mechanical properties of the manufactured part and how to control those parameters to achieve desired properties,” stated Leu. “The laser’s power, the beam diameter, the traverse speed, the line spacing and the layer thickness all can affect the parts produced.” Chemical composition and environment temperature are other factors that can significantly affect the part’s properties, he says.

The team is also investigating ways to reuse powder to reduce the cost of raw materials. A problem with this, Leu says, is that due to heat effect the powder immediately surrounding the part made may have degraded or clumped to be used again to make parts as good as those from virgin materials. Reduced strength is an example of how the reused powder might negatively affect the finished product.

www.mst.edu  

In the latest issue of Metal AM magazine

Download PDF
 

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

  • Revolution, not evolution: General Motors on building an AM culture and the AM Dream Machine
  • The power of Additive Manufacturing in the hands of artists: Public works to small batch production
  • Growing momentum and broadening recognition: A status update on the rise of Electron Beam PBF
  • Improving carbon capture efficiency through Additive Manufacturing in the race for a liveable climate
  • The System of AM Systems: How Metal Powder Works’ in-process powder production could change metal AM
  • The next generation: Using metal AM to drive emissions reduction and educate the engineers of the future
  • Advances in the AM of refractory metals and hard materials at the 20th Plansee Seminar
  • Additive Manufacturing needs you: Why you and your company should get involved in standards development

The world of metal AM to your inbox

Don't miss any new issue of Metal AM magazine, and get the latest industry news. Sign up to our twice weekly newsletter.

Sign up

News from the industry…

    News from the industry…

    Discover our magazine archive…

    The free to access Metal Additive Manufacturing magazine archive offers unparalleled insight into the world of metal Additive Manufacturing from a commercial and technological perspective through:

    • Reports on visits to leading metal AM part manufacturers and industry suppliers
    • Articles on technology and application trends
    • Information on materials developments
    • Reviews of key technical presentations from the international conference circuit
    • International industry news

    All past issues are available to download as free PDFs or view in your browser.

    Browse the archive

    Looking for AM machines, metal powders or part manufacturing services?

    Discover suppliers of these and more in our comprehensive advertisers’ index and buyer’s guide, available in the back of Metal AM magazine.

    • AM machines
    • Process monitoring & calibration
    • Heat treatment & sintering
    • HIP systems & services
    • Pre- & post-processing technology
    • Powders, powder production and analysis
    • Part manufacturers
    • Consulting, training & market data
    Download PDF
    Share via
    Copy link
    Powered by Social Snap