DIFFUSION WELDING METHOD Russian patent published in 2003 - IPC

FIELD: manufacture of precision units having parts of different type materials, for example in machine engineering and instrument making for producing precise members and their joints. SUBSTANCE: method comprises steps of placing between welded surfaces intermediate gasket of material forming eutectic alloy at least with one of welded materials; selecting temperature of welding process in accordance with temperature of eutectic formation; using soaking time period at welding temperature in range 3 - 5 min; setting welding pressure at process of heating parts to welding temperature in range 0.8 - 0.9 of yield limit of material of intermediate gasket; at time moment of creating eutectic setting zero pressure. EFFECT: desired quality and strength of welded joints at keeping properties of welded materials. 1 ex