An approach to design modular carbide-tipped cutting tools with zero back angles

Most cutting tools are now carbide tipped. To obtain the optimum geometry, the removable faceted cutting tips (RFTs) must be oriented in a certain way relative to the tool. This paper proposes a scientifically based graphical-analytical approach to calculate the RCT parameters. The proposed approach is universal to some extent and can be used for designing other tools equipped with RFTs. An algorithm for calculating the design parameters of a modular lathe tool bit holder with RFTs and a zero back angle is described. The calculated design parameters provide the optimal geometry of the cutting tool edge. The analysis of the derived geometric parameters can form the basis for the optimal design of cutting tools, which can be the topic of students’ research.

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