PROCESS OF DRAWING OF METAL ARTICLES IN DIRECT FLOW DRAWING MACHINES Russian patent published in 1994 - IPC

FIELD: drawing processes. SUBSTANCE: part of billet is drawn through drawhole 1 installed in drawhole holder 2 to length of run of pulling car 3. After release of drawhole 1 from holder 2 billet is moved together with drawhole 1 put on it in opposite direction by value of drawn part of billet to additional drawhole holder 4. Drawhole 1 is registered in additional holder 4 and drawing of remaining part of billet through this drawhole is carried out in direction of drawing of pulling car 3. EFFECT: invention makes it possible to provide for drawing of articles having length greater then value of run of pulling car without any damage of outer surface of billet. 2 cl, 1 dwg