Sigma Labs Inc (SASI)

[El_Jefe42]

Patent 9,999,924 has been published

http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=09999924&IDKey=95AE0AD2C354%0D%0A&HomeUrl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect1%3DPTO2%2526Sect2%3DHITOFF%2526p%3D1%2526u%3D%25252Fnetahtml%25252FPTO%25252Fsearch-bool.html%2526r%3D1%2526f%3DG%2526l%3D50%2526co1%3DAND%2526d%3DPTXT%2526s1%3Dcola.INNM.%2526s2%3Dvivek.INNM.%2526OS%3DIN%2Fcola%252BAND%252BIN%2Fvivek%2526RS%3DIN%2Fcola%252BAND%252BIN%2Fvivek

Method and system for monitoring additive manufacturing processes

Abstract

This invention teaches a quality assurance system for additive manufacturing. This invention teaches a multi-sensor, real-time quality system including sensors, affiliated hardware, and data processing algorithms that are Lagrangian-Eulerian with respect to the reference frames of its associated input measurements. The quality system for Additive Manufacturing is capable of measuring true in-process state variables associated with an additive manufacturing process, i.e. those in-process variables that define a feasible process space within which the process is deemed nominal. The in-process state variables can also be correlated to the part structure or microstructure and can then be useful in identifying particular locations within the part likely to include defects.