Determination of geometrical parameters of profiling tools in manufacturing pipes with internal screw threads by pressing

The article presents problem formulation of the determination of geometrical parameters of profiling press tools, in particular, press needles enabling to produce pipes with internal screw threads by pressing. On account of kinematic conditions of the pressing process, dependences to determine press needle parameters have been obtained enabling to design the working tool profiling in manufacturing the required range pipes with internal screw threads.