EVAL UA TION OF THE INFL UENCE OF GEOMETRY OF A WORKING TOOL ON THE FORCE OF EXTRACTION OF A PIECE OF A ROUND SECTION IN A SQUARE MATRIX
The process of extruding a bar stock of circular cross section in isothermal conditions is considered. The influence of the values of the radii of rounding of the working edges of the matrix and the punch on the behavior of the material at different values of the reduction is analvzed. The dependences of the influence of the radii of rounding of the working edges of the tool, the reduction and the speed of movement of the deforming tool on the force are obtained.