METHOD FOR OBTAINING PERMANENT JOINT OF COMPONENTS MADE OF DISSIMILAR MATERIALS, ONE OF WHICH IS MADE OF PLASTIC METAL Russian patent published in 2018 - IPC B23K20/12 B23K103/18 F16L5/02 F16L5/08 

FIELD: technological processes.

SUBSTANCE: threaded holes (2) are made in the first component (1). On the component (3) made of plastic metal, recesses (4) for heads of fastening elements (5), coaxial to the holes (2), are made. The components (1) and (3) are fastened by the fastening elements (5), wherein the heads of the fastening elements (5) are embedded into the recesses (4) until formation of free space between the heads and the component (3) surface. The component (3) made of plastic material is affected by a rotating cylindrical tool (6) to heat it to the temperature causing its plasticization. When moving the tool, the mentioned free space of the recesses is filled with plasticized metal (7) of the second component (3), ensuring closure of the heads of the fastening elements (5) in them, receiving hermetic permanent joint. During the heating of the second component, when the cylindrical rotating tool (6) is moving, the first component is cooled.

EFFECT: method provides high structural strength of the permanent joint of dissimilar materials.

2 cl, 5 dwg