Process for the continuous equal channel angular pressing metal blanks in the form of bars

摘要

1. A continuous process for equal channel angular extrusion of the metal strand in the form of a bar comprising feeding the workpiece into the working channel formed between a rotating disk with a continuous circumferential groove and fixed limiting basis, surrounds a portion of the length of the annular groove, wherein at the outlet of the working channel provide a change of direction by the support parts installed in the annular groove, and by rotation of the disk blanks provide advancement of a working channel in the direction of its output, tlichayuschiysya in that the continuous equal channel angular extrusion is carried out in three successive stages, in which each step is performed after changing the direction of flow of the workpiece material at an angle P = 90-120 °, after which shaping is performed prutka.2 plastic. A method of continuously equal channel angular extrusion of a metal blank rod according to claim 1, characterized in that the degree of deformation provides true at each stage e≥0,7, and the final shaping semifinished product by reducing the cross section of the preform provide the true degree of deformation e≥0 3.3. A method of continuously equal channel angular extrusion of a metal blank rod according to claim 1, characterized in that during plastic shaping a cross section obtained semifinished product in the form of a square, oval, rectangle, etc.