Study of Kinematic Feasibility to Form Compound-Profile Holes by Drill-Threader-Mill

Kinematic feasibility is considered of making in casing’s parts the compound-profile holes, having threaded sections, with the use of the combined tool being a combination of a drill and a threader mill. Criteria to select optimal options of kinematic sequences of processing of the holes are developed which allow the tool efficiency of processing and the tool stability to be increased.