Device for inserting and pushing a bar into a press-piercing mil

Details Device for inserting and pushing a bar into a press-piercing mil Device for inserting and pushing a bar into a press-piercing mil

1978-11-28

1981-09-15

Mehr, Milton S.

Metal deforming

By use of roller or roller-like tool-element

With tool inside hollow work

72250, B21B 1706, B21B 2502

Patent

active

042890128

ABSTRACT:
A device whereby a square bar is inserted and pushed into a press-piercing mill (PPM), the bar being disposed along the rolling and drilling axis of the mill, the apparatus being characterized in that it comprises:

REFERENCES:
patent: 971512 (1910-10-01), Adams
patent: 2024514 (1935-12-01), Diescher

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