IMPROVING THE WEAR RESISTANCE OF CUTTING TOOLS AND MACHINE PARTS THROUGH THE APPLICATION OF COATINGS.
Keywords:
ion nitriding, microalloying, wear-resistant coating, cutting tools accuracy, tool wear resistance, plastic deformation, high-speed tools, surface coating, crack resistance, oxidation resistance, friction reduction, adhesion, workpiece quality, systematic shape errorsAbstract
In this work, a high-speed cutting tool with a complex surface treatment of the teeth — including nitriding, alloying, and coating — was used for machining a hard-to-process chromium–nickel material. One of the most urgent problems in modern mechanical engineering is the rapid wear of cutting tools. This article is devoted to the study of strengthening the base casting of the tooth surface up to a thickness of 60 μm using the nitriding process. After the alloying process, the surface of the cutting tool is coated with various nitride-forming elements. The treated, high-strength cutting tool was tested in the tool shop of a machine-building plant.
This study presents innovative combined methods of nitriding, alloying, and coating application for the complex treatment of cutting tools. In this research, chemical-thermal treatment and coating are carried out through strain hardening caused by the passage of an elastic wave generated by a precisely pulsed electron beam.
The main purpose of the study is to significantly reduce the plastic deformation of the coating on the surface of the cutting tool operating under increased and high loads.
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