Directed energy deposition of a cemented tungsten carbide rotary burr prototype

Abstract

In this study a cemented tungsten carbide rotary burr prototype was fabricated using directed energy deposition based on an optimal parameter set which was previously derived from a full factorial design of experiments matrix approach. Finite element analysis under static conditions was carried out on the burr to understand the possible geometric stress raisers and stresses during assimilated operation. Initial field tests were done to assess the functional performance of the prototype, and comparisons were made against a conventionally manufactured burr.