METHOD FOR MANUFACTURE OF THIN-WALLED PROFILES FROM DIFFICULT-TO-DEFORM SHEET BLANKS AND AUTOMATIC LINE FOR PERFORMING THE SAME Russian patent published in 2006 - IPC B21D5/06 

FIELD: plastic working of metals.

SUBSTANCE: method involves manufacturing thin-walled bent profiles from sheet blanks of difficult-to-deform materials in newly quenched state for two - four transitions within roller apparatus by hindered bending process, followed by applying of gauging tensile force in zone of maximal plastic deformations over the whole sectional area, with axial end push at input being created at each forming transition process and axial tension at output; oiling blank and exposing to supersonic vibrations; dividing into two strips of different width and directing in two grooves to profile bending unit, followed by profiling in roller apparatuses for simultaneous manufacture of profiles having sections of various shapes. Automatic line has roll feeder made in the form of unwinder and feeding device equipped with drive, oiling and feeding device, guiding device, profile bending unit, profile cutting unit, counting device with electronic control unit, and feeding table with thrower, with all parts of automatic line mentioned being arranged in processing sequence and made in the form of independent units. Automatic line is furnished with roller-type cutter disposed behind unwinder, supersonic vibration source, and guiding wedge for dividing blank into two strips. Oiling and feeding device is coupled to individual unwinder drive. In particular embodiment of automatic line, roller-type cutter and guiding wedge may be urged for simultaneous motion in order to enable dividing of blank into two strips of unequal width.

EFFECT: wider operational capabilities owing to utilization of supersonic vibration source, improved quality of profiles, and increased efficiency.

4 cl, 2 dwg