COMBINATION ELECTRODES FOR CONTACT BUTT WELDING OF ROUND SECTION PRODUCTS WITH FURTHER FLASH REMOVAL Russian patent published in 2017 - IPC B23K11/04 B23K11/30 

FIELD: electricity.

SUBSTANCE: combination electrodes are made in the form of two lower energizing jaws and two upper clamps equipped with four cutting half-bushings with the possibility of coverage of welded blanks. The front cutting edge of each of the two lower half-bushings is made elongated in comparison with the edge of the upper half-bushing with the possibility of flash removal from the bottom of the welded product above its horizontal axis. The cutting edges of the upper and lower half-bushings are crossed to ensure complete removal of the flash from the product. Each of the two lower half-bushings is performed with a groove located behind the cutting edge to ensure a tight pressing of the welded blanks to the energizing jaws due to elastic deformation of the lower half-bushings by clamping force of the electrodes.

EFFECT: improved cleaning quality of round product surface and improved stability of product contact on the lower energizing jaws by applying the half-bushings to the specified structure.

1 dwg