FIELD: plastic working of metals, in particular, manufacture of fastening parts with heads from, for example, titanium alloys, may be used in mechanical engineering and aviation equipment.
SUBSTANCE: method involves heating basic blank to forming temperature and providing hot forming by vertical pattern, with forming of bolt core being provided by extrusion process including uniform flowing of metal into extrusion head over funnel-shaped surface. Pressure is applied to blank through pressing washer. Portion of blank is left in container of extruder for further forming of bolt head.
EFFECT: increased efficiency, simplified process owing to reduced number of operations and increased cyclic strength of bolt.
2 dwg
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