Grant: CCI Applied Research and Development Grants

The objective of the project is the development of Additive Braze Cladding for the maintenance, repair and overhaul of aerospace components. P&WC has contacted CMQ with the purpose of collaborating on the adaptation of brazing to directed energy deposition (DED) technology. DED will help deposit the brazing powder into a much more efficient and conformal layer. The potential benefits stemming from the project are the reduction of waste compared to using pre-sintered preforms, which usually need to be machined following brazing. Furthermore, the cost of repair should be significantly reduced due to the difference in cost between the pre-sintered preform and the brazing powder. Through a design of experiments, CMQ will develop deposition parameters that will allow for the brazing powder’s adherence to the surface, without inducing potential distortion from the transferred thermal energy. The quality of the deposits will be evaluated using microscopy for the deposit and then the development of the brazing parameters will be performed. The final brazed repairs will be characterized by metallography and NDT.