OBRABOTKA METALLOV

Abstract
   Creating a rock cutting tool with high performance is a burning problem and its solution will be a significant reserve of the further rise in the efficiency of drilling.   The method of combined magnetic-pulse treatment including preheating and effects of pulsed magnetic field to improve the wear resistance of drilling tools carbide type VK8 is proposed. Wear resistance of the samples are evaluated on the equipment for erosion testing according to ASTM G76-07 «Standard Test Method for Conducting Erosion Tests by Solid Particle Impingement Using Gas Jets».    The results of experimental investigations show that the preheating temperature of 1000 °C, the magnetic induction of 1.8 T and a pulse influence time  7∙10^-4 s of the wear treated samples are 2.5 times less than the untreated control samples.    The proposed method of processing carbide tools is promising for mining industry. In future research on the application of the combined magnetic-pulse treatment of drilling carbide tools will be expanded.

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