APPARATUS FOR DIFFUSION WELDING Russian patent published in 2004 - IPC

FIELD: diffusion welding processes and equipment, namely diffusion welding of bodies of step motors.

SUBSTANCE: apparatus includes evacuation chamber for welding blanks in it; heat source for heating blanks and low-size press. Evacuation camber is in the form of portable container suitable for heating it in industrial furnace. Low-size press is in the form of single-corrugation bellows closed at its ends by means of thick wall discs to which thin-wall membranes are welded along outer contour. Said bellows is filled with matter expandable at heating. Press is housed in container for compression together with blanks. It allows not to use complex and high cost equipment as in standard apparatuses for diffusion welding.

EFFECT: low-cost simplified process for making mass-production article.

2 cl, 3 dwg, 1 ex