COMBINED EXTRUSION OF GLASSES WITH A CONICAL BOTTOM. KINEMATIC AND STRESS STATES OF THE PLASTIC REGION IN CONTACT WITH THE CONICAL SURFACE OF THE MATRIX
А. Л. Воронцов, D. A. Lebedeva
Abstract
For the extrusion of glasses with a conical bottom using the method of plastic flow by A. L. Vorontsov, the kinematic and stress states of the extruded metal in the area of the plastic deformation zone in contact with the conical surface of the matrix were determined. The results are combined with the results obtained earlier for the cylindrical region located under the forming glass wall. The resulting formulas will be used to determine the stress state in the areas of the focus located under the end of the punch. The derived formula for the maximum pressure on the matrix wall is necessary for calculating the matrix strength and making an informed decision about the need for its banding.
Topics & Concepts
Conical surfaceMaterials scienceExtrusionKinematicsContact areaStress (linguistics)Deformation (meteorology)Composite materialMatrix (chemical analysis)PlasticityMechanicsClassical mechanicsPhysicsPhilosophyLinguisticsEngineering Technology and MethodologiesMaterial Properties and ApplicationsPolymer Science and Applications