Abstract
Present paper is about experimental investigation coating quality obtained by plasma transferred arc (PTA) welding in relation to the material-and process parameters. The aim of work is to get different materials coatings with satisfactory properties, which could be used at hybrid bevel gears further. The main idea of this method is to create bi-metal workpieces by deposition one material over other, then form it by thermo-mechanical processing. Using hybrid bevel gears would reduce costs because the gear would not be made of one expensive material, but has only a functional surface layer with cheap core. In is investigation steel cylinders made of C22 are coated with the higher-quality heat-treatable different steels: 41Cr4, 50CrV4 and 100Cr6 using PTA welding. Coating quality is depend on many deposition parameters, such a feederate, current, preheating temperature etc.
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