What is Cold Spray?
How Cold Spray Works
Physics and Metallurgy
Cold Spray High Pressure Carrier Gas
Benefits of High Pressure
Cold Spray vs. Thermal Spray
Benefits of Cold Spray vs. Thermal Spray
Cold Spray Applications
Recent advancements in cold spray technology are dramatically expanding what you can do with thermal spray processes. Cold spray can be used to deposit metals on sensitive or difficult-to-weld surfaces for never before possible combinations of unique materials. Cold spray can also be used to repair damaged areas of a finished part, without causing additional problems like warping, cracking, or softening of the part. Furthermore, properties approaching, or in some cases even exceeding the base material properties can now be achieved. This opens the door for cold spray to be used on more than just cosmetic surface restoration, but loaded areas can be repaired including rebuilding entire features on a part.
Cold spray has been applied to numerous high strength aluminum parts, but it has also been used to deposit stainless steel and other high strength steels, bronze alloys, nickel alloys, titanium, and even exotic elements like tantalum and niobium. Cold spray doesn’t fix everything, but it has the ability to solve challenges that other technologies simply can’t touch. And just as importantly, once a cold spray process has been developed, it can be applied reliably and repeatedly for a given application.
Department of Defense Components
Another application developed is a chaffing prevention and possible repair coating for titanium hydraulic lines, as shown in Figure 5.
Cold Spray Materials
Cold spray has been successfully demonstrated on a very broad range of metallic, ceramic, and thermosetting polymeric materials. While not exhaustive, the materials below represent some of the deposits that we have specifically evaluated to date using our system.