METHOD FOR MANUFACTURE OF FLAT BIMETAL SHEETS BY EXPLOSIVE WELDING Russian patent published in 2009 - IPC B23K20/08 

FIELD: technological processes; explosive works.

SUBSTANCE: explosive substance charge is placed on plating sheet with different thickness, and mentioned charge is initiated. Charge thickness is selected based on condition of deforming impulse I_D constancy in collision zone on the whole surface of plated sheet in the process of explosive welding. At that ratio of deforming impulses I_D/I_D ^crit values is selected within the range from 1.0 to 1.76, where I_D ^crit - critical value of deforming impulse, when energy spent for deformation of near-contact metal volumes provides for required extent of contact surfaces activation for formation of reliable joint.

EFFECT: leveling of deforming impulse value in collision zone makes it possible to stabilise welded joint wave profile parameters on the whole surface of joining area, high strength.

5 dwg