DIFFUSION WELDING METHOD Russian patent published in 2002 - IPC

FIELD: welding of precision parts of different type materials, for example metallic and non-metallic materials, and elastic metallic materials. SUBSTANCE: method comprises steps of heating parts until welding temperature corresponding to quenching temperature of elastic material; contracting them; performing isothermal soaking and cooling at rate corresponding to cooling rate at quenching elastic material; after achieving temperature 250-300 C realizing additional isothermal soaking for 2-3 h. EFFECT: possibility for providing desired elastic properties of high quality welded joint. 1 ex, 1 tbl