DEVICE OF ELECTROMAGNETIC PULSE WELDING, INCLUDING ISOLATOR FOR WELDING METAL SHEETS Russian patent published in 2017 - IPC B23K20/06 

FIELD: metallurgy.

SUBSTANCE: device used to connect the metal sheet 11 to a metal piece 12 spaced from it, contains a coil 4 and an electric power source 2 connected by a current conductor 3 to a coil 4, which is formed with a passive part 42 and an active part 41 with the possibility of placing on the weld metal sheet 11, the passive part 42 having a larger cross-section than the active part 41. The device is also provided with a cooling isolator 5 made of a material, which, compared to the material of the coil 4, has a higher thermal conductivity and lower magnetic and electrical conductivity, the cooling isolator 5 being placed adjacent its surface to the surface of the active part 41 of the coil 4, from its heat and mechanical support.

EFFECT: using the invention allows to increase the reliability of connecting the sheet to the workpiece.

15 cl, 3 dwg