TOOL FOR DIE FORGING OF CUP-SHAPED SEMIFINISHED PRODUCT OF WHEEL OF TRANSPORT VEHICLE Russian patent published in 2005 - IPC

FIELD: plastic working of metal, possibly in forging shops of metallurgical and machine engineering plants for making wheels of automobiles and similar articles.

SUBSTANCE: tool includes die, punch, knocking out member with shaped portion, unit for stepped regulation of bottom thickness and height of cup. Said unit is in the form of apparatuses for changing length of punch and depth of die. In upper part of punch female type yoke with through stepped opening is mounted. In upper part of die there is seat whose diameter dimension corresponds to outer diameter of yoke. Depth of die is changed by means of apparatus in the form of flat ring arranged over shaped portion of knocking out member. Apparatus for changing length of punch is in the form of flat round gasket arranged inside yoke over punch. Punch has in its upper portion large-diameter step corresponding to diameter of large step of yoke opening.

EFFECT: possibility for producing by means of one tool semi-finished products of wheels with different combinations of width and thickness values.

3 cl, 3 dwg