Wear resistance is where PVD really shines
Protect your tools, components and engine parts with a highly wear-resistant coating deposited by a specifically configured Hauzer machine
Protect your tools, components and engine parts with a highly wear-resistant coating deposited by a specifically configured Hauzer machine
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Because wear resistance is such a fundamental property of PVD coatings, these coatings are popular for a wide range of markets and applications.
Hauzer machines can be configured with the following technologies to create the many wear-resistant coatings we have developed.
“Once we apply wear-resistant coating on our products, we rarely hear any complaints from our customers. Our DLC coatings are now widely accepted as the solution to many challenging applications that were difficult to meet before,”
The conclusion of research, by facility of Surface Engineering Institute (IOT) at RWTH Aachen, was that under tribological loads, i.e. contact pressure and temperature, MoS2 and WS2 were formed as a result of the reaction of the coating with the lubricant additives. This resulted in reduced friction.
“Conventional PVD coatings for piston rings are mostly CrN coatings. However, we developed a hydrogenfree carbon coating, ta-C and a-C, that offers many functional benefits, such as an average 20% reduced friction loss, very low wear and superior scuff resistance.”
For tools to form and cut non-ferrous metals and plastics, the best coating is hard, with a low coefficient of friction, reducing built-up edge and keeping the cutting edge sharp. Cutting tests show that one of the diamond-like carbon (DLC) coatings, the tetrahedral amorphous carbon (ta-C) coating, applied with HiPIMS is an excellent solution for this application and many others.
New test results show that ta-C coating applied by HiPIMS, smoother than ta-C applied traditionally, has excellent cavitation wear resistance and adhesion. Ruud Jacobs, Process Manager Tribological Coatings, says: “From a technical perspective, we consider the HiPIMS carbon coating to be one of the best – if not the best – performing coatings available.”