Influence of modified layer of tool on stress — Strain state of cutting wedge

Ion implantation is a promising method of increasing the tool lifetime. The process of high-energy rays can significantly change the contact surface condition and the adhesive contact of chip with the tool. In this paper we consider the influence of ion implantation on the process of chip formation and the stressstrain state of the cutting tool. The object of study is coated carbide insert with TiN alloy grade T5K10 and uncoated implanted Al, TiB₂, and Zr. The experimental part of the work contains the results of measuring the technological components of cutting force and the analysis of metallographic of chip. In the theoretical part the assessment of value and distribution of stresses in the cutting tool edge is made. It is shown that ion implantation significantly changes the characteristics of the mechanism of chip formation, the magnitude and nature of stress distribution in the cutting part of the tool. The results can be widely used in the tool industry to improve the efficiency of cutting tools.