Study of the Operating Conditions of Piercing Mill Shoes Using Computer Modeling

The operating conditions of piercing-mill shoes of “classical” configuration are discussed. The following main parameters of the shoe configuration affecting the sticking of metal of the hollow shell to the shoes are determined: the length of the cylindrical section of the shoes, its location relative to the axis of the piercing mill, the taper angle of the exit section, the radius of the groove of the shoes, the ovality in the deformation zone.