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Additive Manufacturing Metrology Testbed (AMMT)
The NIST Additive Manufacturing Metrology Testbed is a fully custom, open-platform laser powder bed fusion (LBPF) system to advance monitoring, controls, and metrology research. In addition to research specific to AM, the system employs a suite radiometric calibration and measurement instruments that enable the Temperature and Emittance of Melts, Powders, and Solids (TEMPS). The AMMT/TEMPS is a collaborative development between NIST Engineering Laboratory (EL) and Physical Measurement Laboratory (PML) with shared metrology goals of traceable, multi-spectral radiometric measurements of laser-heated materials.
TEMPS
Specifications/Capabilities
- Fully custom laser scanner control
- Calibrated radiance temperature, emittance, and true melt pool temperature
- Process monitored 3D metal AM builds
- High speed melt pool imaging and associated measurements
- Laser absorption and melt pool energy balance
Scientific Opportunities/Applications
NIST is open to collaborations on projects that can make use of the special capabilities of the AMMT. Unofficial collaborations are preferred, with topics that fall under the research goals of the AMMT and the Measurement Science for Additive Manufacturing Program, and any results can be made public and co-published by NIST. Official collaborations can be conducted through a Cooperative Research and Development Agreement (CRADA).
Want to work with the AMMT? Various opportunities exist for guest researchers, post-doctoral researcher associates, or for Ph.D. students through the NIST Pathways internship program.