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Webinar On-Demand:

AM Metal Powder is Within Spec, But Will it Build?

Understanding how powder can influence additive manufacturing processing and final material properties

Powder specifications are vital in ensuring stable and reproducible processing. So it is clear that the ability to test a powder against the specification and ensure it is being met is vital. In this webinar, UL and LPW experts will discuss how powder can influence the Additive Manufacturing processing and final material properties of the built parts, and what properties influence powder behavior.

We will introduce the techniques used to measure the key powder properties, and discuss their pros and cons in the context of AM. A short case study will demonstrate how effective powder testing can be used as part of root cause analysis in AM, which could save time and expense.

In collaboration with



What does a metal powder specification really tell you?

  • Introduction to powder testing
  • Why it's important to understand AM from the perspective of the powder
  • What to test for and how to test -- shape, size, chemistry
  • Typical outputs of testing; what it tells you and what it does not tell you
Applying metal powder specifications to industrial production.
  • In-house testing and validation of metal powder for AM process control


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Your Speakers:

Dr. Neil Harrison

Materials Development Manager, LPW

Bio: Dr. Neil Harrison uses his knowledge of the behaviors of alloys and materials on LPBF systems to provide technical and consultation services.  His expertise in metal additive manufacturing includes the development and design of alloys and powders optimized for laser powder bed fusion (LPBF), and spans both research and practical implementation. Neil's PhD at the University of Sheffield was on solidification, microstructure and material response of nickel superalloys processed by Laser Powder Bed Fusion (LPBF).  He has published works on microstructure and solidification theory in LPBF, and reduction of microcracking in nickel superalloys.

Dr. Khalid Rafi

AM Lead Development Engineer, UL LLC

Bio:  Joining UL in 2015, Dr. Khalid Rafi is responsible for the development of AM materials validation and process validation programs at UL’s Global AM Center of Excellence in Singapore. Leveraging his 14 years of experience in teaching and research, Rafi is also engaged in the development and delivery of UL’s AM training program. Rafi holds a Masters and PhD in Materials and Metallurgical Engineering from the Indian Institute of Technology, Madras, India and has earned a post-doctoral fellowship from the University of Louisville, Kentucky, USA and Nanyang Technological University, Singapore.