METHOD FOR WORKING BODIES OF PIPELINE FITTING Russian patent published in 2004 - IPC

FIELD: processes of mechanically working body parts such as T-piece bodies of pipeline fitting, possibly working parts with inner worked surfaces geometrically arranged one relative to another. SUBSTANCE: method comprises steps of first setting onto rough surface through opening; working surfaces for providing bases; basing during next operations according to said bases with use of special machine attachments; at subsequent operations basing according to three bases provided at first setting symmetrically relative to vertical and horizontal axes of body at its one side according to condition of engagement with reciprocal members of special machine attachments; realizing bases for flanged bodies on outer surfaces of main and mean flanges along their whole width in the form of grooves with inclined faces and for bodies without flanges - in the form of dead cone or cylindrical openings. EFFECT: enhanced accuracy of working due to using single base during all working operations. 4 dwg