Part Density Estimation Using a Laser Scanner
Short abstract:
The purpose of this research is to investigate the accuracy of part density determinations calculated from inspection data gathered by laser scanners via articulating arm coordinate measuring machines (AACMM). Los Alamos National Laboratory (LANL) routinely performs density measurements on Plutonium (Pu) parts utilizing Archimedes’ Principle for volume estimation and with Pu being radioactive by nature, the fluid byproduct becomes radioactive. Given that Pu has a half-life of 24,100 years, this research has the potential for significant impacts to cost savings and positive long-lasting environmental impacts. Densities gathered through hydrostatic weighing will use a defined process and include a full uncertainty budget. The mass and densities calculated from this process will be considered the “calibrated” correct value. Mass values collected during the density process will be divided by volume calculations, generated from the AACMM dimensional measurements, to determine an estimated density. The difference between the calibrated density (hydrostatic) values and estimated density (AACMM) values will serve to provide an estimate of the systematic bias and thus establish an accuracy and capability of this technique.
Joshua Montaño, Los Alamos National Laboratory, R&D Engineer
Mario Valdez, Los Alamos National Laboratory, R&D Engineer
Michael Steinzig, Los Alamos National Laboratory, R&D Engineer
Zachary Sanchez-Archuleta, Los Alamos National Laboratory, Student Intern
Submitting Author:
Joshua D. Montaño
Los Alamos National Laboratory
P.O. Box 1663, MS D471
Los Alamos, NM 87545
505-667-3517
jmontano@lanl.gov
Technical paper will be submitted: Yes
Content Category: (a) Applications and (b) Research and Development (R&D)
