METHOD OF PARTS JOINING Russian patent published in 1995 - IPC

FIELD: joining of members in stationary and mounting conditions in mechanical and civil engineerings. SUBSTANCE: mainly at one-sided approach, at which the upper part is installed on the lower one and they are coupled by means of a coupling member welded on by arc welding through the hole in the upper part, arc welding-on of the coupling member is accomplished before the upper part is installed on the lower one by means of a detachable crystallizer with a preset shaping chamber located on the lower part. After removal of the crystallizer the quality of shaping of the coupling member and its joint with the lower part is checked, the upper part is installed by bringing the coupling member in the hole of the upper part, the projecting part of the coupling member is melted down shaping its head. To prevent turning - through of the parts relative to each other, at least part of the hole of the upper part has a non-round shape. A thread or some other projection for coupling is formed on the external surface of the coupling member. EFFECT: facilitated procedure. 5 cl, 2 dwg