Method of producing clad steel articles

Details Method of producing clad steel articles Method of producing clad steel articles

1980-08-14

1983-01-11

Ramsey, Kenneth J.

Metal fusion bonding

Process

Using dynamic frictional energy

228155, 228156, 228158, 72370, 72258, 72700, B23K 2012

Patent

active

043678386

ABSTRACT:
An inner stainless-steel tube having an outer frustoconical faying surface is fitted into an outer carbon-steel tube having a matching inner frustoconical faying surface, and these tubes are friction welded over their entire faying surfaces by pressing the tubes together in their axial direction to obtain a high contact pressure due to a wedge action and, at the same time, imparting rotation thereto relative to each other thereby to obtain an integrally bonded, laminated, tubular blank, which is then extended by a suitable process such as rolling into a clad steel tube. The tubular blank can also be slit in its axial direction and flattened into a laminated flat blank, which can be rolled into a clad steel plate. The inner tube may be replaced by a solid core metal. In this case, an integrally bonded blank made up of the inner core metal and the outer tube is extended into a clad steel tube or into a clad steel shape.

REFERENCES:
patent: 2107943 (1935-02-01), Hopkins
patent: 3126625 (1964-03-01), Laing
patent: 3134278 (1964-05-01), Hollander et al.
patent: 3504425 (1970-04-01), Sutovsky et al.
patent: 3664012 (1972-05-01), Wilke et al.

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