H-shape metallic material rolling process

Details H-shape metallic material rolling process H-shape metallic material rolling process

1977-03-30

1978-05-02

Mehr, Milton S.

Metal deforming

By use of roller or roller-like tool-element

Plural roller-couples

72225, 72250, B21B 112

Patent

active

040868010

ABSTRACT:
A process for hot rolling an H-shaped metallic material from a workpiece of rectangular cross section which comprises reducing the workpiece in the width direction thereof while wedgewise knifing the opposing sides of the workpiece by means of a first pair of grooves formed in rolls of a vertical roll stand; reducing the workpiece in the width direction thereof while spreading the knifed sides by means of a second pair of grooves which may be formed in rolls of another vertical roll stand or in the rolls having said first pair of grooves; and subsequently rolling the workpiece to a required size by universal rolling mills. This process thus enables a starting material of a rectangular cross section to be employed instead of that of H-shaped cross section.

REFERENCES:
patent: 499651 (1893-06-01), Butz
patent: 723834 (1903-03-01), Cooper
patent: 3165948 (1965-01-01), Kishikawa
patent: 3597954 (1971-08-01), Nakajima et al.

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