UPSETTING METHOD Russian patent published in 1994 - IPC

Abstract RU 2016691 C1

FIELD: metal working. SUBSTANCE: a length of workpiece is cut off from rod. Preliminary head is formed in upsetting die, and a groove with inclined walls is made in the head. Then the head with spline is finally offset. With a lack of perpendicularity the die is turned to an angle equal to or exceeding sector of die hole. After complete turning of the die and blunting the edge, sharp edge is again made in the die to be used during a successive upsetting of workpiece head. EFFECT: enhanced efficiency of the method. 2 cl, 6 dwg

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RU 2 016 691 C1

Authors

Maksimov Nikolaj Ivanovich

Dates

1994-07-30—Published

1992-09-28—Filed