Sigma & NIST sign deal to study recycled powder effects


Sigma Labs, Inc. (“Sigma Labs” or the “Company”), a provider of quality assurance software under the PrintRite3D® brand, has announced it has entered into a Cooperative Research and Development Agreement (CRADA) with the National Institute of Standards and Technology (NIST). NIST and Sigma will study the effects of recycled powder and part placement on process variability and part quality using Sigma’s PrintRite3D® technology. The study will be the first of its kind to characterize the use of recycled powder in the Laser Powder Bed Fusion (LPBF) process using both in-situ monitoring technology and post process mechanical property characterization. This collaboration represents an important step forward in providing a much-awaited technical solution and understanding of powder reuse and its implicit cost savings.

During this study, Sigma’s In-Process Quality Assurance™ PrintRite3D INSPECT® software will play a key role in quantifying process variability and part quality using its proprietary Thermal Energy Density™ (TED™) In Process Quality Metric™, an industry first for quantitatively measuring melt pool variation and part quality.