FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and may be used in cold forming of brake hose tip-type parts. Proposed method comprises cutting initial billet, leveling its faces, making marks on billet faces, extruding cavities, swaging flange, punching bores and cutting polygon on flange. Makes on billet faces made, billet is reduced. Larger- and smaller-diameter cavities are produced. Larger-diameter cavity is produced by re-extrusion at larger diameter section of reduced billet. During another pass, flange is swaged and larger -diameter cavity is calibrated. Height of larger-diameter cavity is kept unchanged during all next passes.
EFFECT: higher quality, tool longer life.
1 dwg
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