The invention concerns a method of manufacturing a joint housing, in particular
for vehicle track rods, having an integral shaft with an internal thread designed
to hold a longitudinal pin, the housing being produced from a blank with a ball-like
enlargement at one end. In order to ensure low manufacturing costs and low consumption
of energy and materials, a longitudinal cavity with a diameter exceeding that of
the internal thread and a length exceeding that of the threaded section is first
produced in the shaft of the blank by rearwards cup extrusion and the diameter
of the threaded section subsequently reduced to that of the thread core while at
the same time shaping the surface of the wall to give a flat key face, the overall
process being a cold-forming one. Finally, both the external and internal features
of the housing are produced by heading, cupping, punching and forming to size perpendicular
the to longitudinal axis in the region of the enlargement.
