A Tool for Finish Turning of Plasma-Sprayed Materials

Specific properties of plasma-sprayed materials cause major difficulties at edge cutting machining, which lead to extremely low-efficient tool life, as well as low accuracy and quality of the machined surface. The article deals with technological opportunities for applying cylindrical carbide inserts (rods) as cutting tools for the finish turning of plasma-sprayed products or coatings that have particularly low machinability of cutting. It is shown that the use of rods of a small diameter in the finishing operation makes it possible to ensure the optimal geometric parameters of the cutting part of the tool. At the same time, the forced rotation of the rod allows us to considerably increase the tool life period (up to 10-20 times or more) without reducing the quality of the machined surface. The result of our work is the design of the tool for turning surfaces using a rotary cutting element.

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