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Effects of VCN coating of PEEK gears with the PVD method on wear performance
(Springer, 2024) Cureoglu, Arif; Uzun, Mahir; Sap, Emine
In this study, the effects of coating gear wheels made of PEEK material, which is frequently used in the industry, with the PVD method on the tribological performance were investigated. Spur gears with 6 modules, 15 teeth, and 20 mm surface width consisting of PEEK samples were used as the base material. Gears modeled in Solidworks were manufactured on a CNC milling machine. The coating process was performed with VCN target material in three different thicknesses. After the coating process, hardness and wear tests were applied to the samples. An increase in the hardness values of the samples coated in different thicknesses was observed compared to the pure PEEK material. As the coating thickness increased, the amount of wear on the gear wheels increased and it was determined that the most resistant sample against wear was the gear wheel with a coating thickness of 367 nm. In experiments conducted in different liquids, it was observed that the most wear occurred in NaCl solution.