Investigation of the Influence of the Powder Gas Flow Rate onto the Build Quality of Cold Spray Copper Alloy Parts

The solid-state additive manufacturing (AM) process Cold Spray (CS) has recently gained importance in science and industry. It offers advantageous properties like high deposition rates and low oxide build-ups. During the process, powder particles are accelerated to supersonic speeds by a carrier gas. The resulting particle velocity is crucial for the deposition quality and must comply with the processed powder material. Analyzing the CS process the powder gas flow rate, a so far slightly investigated parameter, seems to be of major importance. This paper investigates the influence of the powder gas flow rate on the quality of cold sprayed CW106C.