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Purpose of research . The study is devoted to improving the resistance characteristics of an interlocking side milling cutter with a constructive radial feed when processing extended RK profile shafts while maintaining the required quality of surface treatment.   Methods . Forming of RK profiles by milling with a disk cutter with a constructive radial feed allows you to obtain the required surface quality with high processing productivity. Due to the fact that the processing conditions for each cutting insert are different, it is necessary to study the resistance of interchangeable polyhedral inserts (IPI) and to search for structural solutions to reduce the range of change in resistance, while maintaining the quality of surface treatment of the PK profile. The influence of the use of an uneven pitch of location both on the quality of processing and on the resistance of each individual insert is studied.   Results . The paper presents a method for calculating the resistance of an IPI of a interlocking side milling cutter during processing of an extended RK profile of a shaft, taking into account the individual conditions of their operation, namely: cutting speed, feed to the tooth, milling width and the diametrical position of the IPI   Conclusion . The analysis of the influence of the structural parameters of the cutter on changing the range of values of the resistance of IPI is made, and recommendations for its reduction are proposed. The main design parameters that affect the change in the resistance range are also identified.

izvestiâ ûgo-zapadnogo gosudarstvennogo universiteta

Modeling and Research of Resistance Characteristics of an Interlocking Side Milling Cutter with a Constructive Radial Feed When Processing Extended RK-profile Shafts