METHOD FOR WORKING PASSES AND GROOVES ON ROLLS AND WASHERS Russian patent published in 1998 - IPC

FIELD: working different-profile passes and grooves of rolls, rollers, roll bands, possibly cutting circular cross section passes on hard-alloy rolls and cross helical grooves for rolling reinforcement rods. SUBSTANCE: method comprises simultaneously working passes on two or more rolls. Tool (screw tap, reamer, drill, milling cutter, belt, wire or rod) is set between worked surfaces. If it is necessary tool may be subjected to rotation; it also may be in tensioned state. EFFECT: enhanced efficiency, high quality of passes and grooves. 9 cl, 4 dwg