Creation of internal protrusion in pipe billet by radial extrusion. Determination of kinematic and stress states. Part 2

Key Points

• The study finds formulas to calculate the stresses and force parameters in internal radial extrusion.
• Maximum pressure on the die wall was determined, showing critical pressure limits in processing.
• Using plastic flow theory, the expansion force on the mandrel was calculated, revealing efficiency in design.
• Implications suggest improved design parameters for pipe production processes in industrial applications.