Cold spray (CS) supersonically acceleration is a manufacturing technique that has become an increasingly popular method used in the additive manufacturing of metals. Within the CS equipment, powder is rapidly pushed through a supersonic gas jet before it impacts the substrate material.
Upon collision of the particles and the substrate, a significant amount of plastic deformation occurs, which is a process that describes the effect temperature has on material properties, that also allows the particles to localize onto the interface of the material. Primarily used as a coating technique to deposit pure metals, such as copper and aluminum, the CS method is a “cold deposition” technique that significantly reduces the amount of thermally induced stresses added to the substrate material.
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