According to the experts, when people think of additive manufacturing, they usually think of 3D printing. However, whilst being an extremely innovative technology it does have its limitations in terms of size and the applications for which it can be used.
GE Global Research is working on an additive manufacturing method to address those limitations. Using a spray paint technique known as Cold Spray or 3D painting, the process builds upon metal surfaces. Metal powders are sprayed from a nozzle at high velocities to add material to metal objects. During the Cold Spray process, a strong bond is created and only a minimal amount of heat is transferred. As a result, the process is safer than welding and still results in a durable end product.