INVESTIGATION OF INSTRUMENTING ROBOCASTING PRINTER FOR CERAMIC SLURRIES

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Date

2023

Authors

McCleary, J.
Durand, N.
Castillo Perez, L.
Medina Zorrosa, G.
Garcia Chavira J.P.
Espalin, D.

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Publisher

University of Texas at Austin

Abstract

Robocasting has multiple steps from ceramic slurry preparation to sintering that can impact the end part quality. In-situ monitoring and process controls can aid in minimizing differences in the quality of printed parts. The study and impact of different parameters during the printing process and a parameter database will improve the quality between green bodies and sintered parts. This paper discusses implementation of a CMOS camera, dynamic pressure sensor, and 2D laser scanner into a custom-built robocasting printer for in process monitoring. Single line beads were printed and analyzed by measuring the dimensions and pressure changes during printing. Results show that the printer with sensors detected the location of possible defects and changes in printed samples but further investigation is needed to filter noise and collect conclusive data.

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