![]() You can read the full research paper, titled “Detecting missing struts in metallic micro-lattices using high speed melt pool thermal monitoring” in Additive Manufacturing Letters, over at this link.Ĭome and let us know your thoughts on our Facebook, Twitter, and LinkedIn pages, and don’t forget to sign up for our weekly additive manufacturing newsletter to get all the latest stories delivered right to your inbox. The method provides the ability to detect and potentially suppress defects before resuming printing of the rest of the build. UC is a partner in Lawrence Livermore National Security, LLC (LLNS), which manages Lawrence Livermore National Laboratory (LLNL). Is this your business Respond to reviews and customer messages. “This will allow a dynamic reaction and potentially the suppression of the defect before resuming printing of the rest of the build.” Lawrence Livermore National Laboratory is located at 7000 East Ave, Livermore, CA. “At the moment, we are capable of detecting defects that span multiple layers, but in the future, new methods will be developed to identify defects within a printed layer,” said Jean-Baptiste Forien, lead author and LLNL staff scientist. They used a combination of a photodiode, a pyrometer, and thermal imaging to monitor the printing of a metallic micro-lattice structure, both normal struts and intentionally defective “half-struts” were printed, with the researchers measuring the thermal emissions from the melt pool. Predicting lattice defects with high accuracy. By monitoring the thermal emissions from the melt pool during printing, the researchers were able to predict whether a strut was present or missing with an accuracy of over 94%. Currently the worlds fastest computer is a machine installed at Lawrence Livermore National Laboratory late last year that has reached more than 136. The team used monitoring, imaging techniques, and multi-physics simulations during the laser powder bed fusion (LBPF) process to detect and predict missing struts and other defects. The NIF and Photon Science Directorate at Lawrence Livermore National Laboratory conducts cutting-edge research in the fields of laser inertial confinement fusion, high energy density physics, and advanced photonics for the advancement of national security, energy security, discovery science, and national competitiveness. Researchers at the Lawrence Livermore National Laboratory (LLNL) have developed a real-time method for detecting and predicting strut defects in 3D printed metal lattice structures. LLNL’s Nuclear and Chemical Sciences Division (NACS) offers deep expertise in physics and chemistry, allowing the advancement of scientific understanding, capabilities, and technologies in nuclear and particle physics, radiochemistry, forensic science, and isotopic signatures.
0 Comments
Leave a Reply. |