Ensuring Thread Precision During Milling at the Tool Design Stage

The article presents programmable radius calculations for a threading mill, which may be used in CNC programming for process design of a thread milling operation without using trial passes, which will significantly reduce design time and increase the lifespan of the tool. We reviewed previous publications and analysed existing approaches to calculating the programmable radius, which allowed us to determine that the programmable radius is not a function of tool parameters. This makes it possible to specify the programmable radius value at the tool design stage. Taking into account the thread precision required, we developed a system of mathematical dependencies that makes it possible to calculate the programmable radius while designing a thread mill for cutting external or internal threads

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