Thin bands and method and apparatus for production thereof

Details Thin bands and method and apparatus for production thereof Thin bands and method and apparatus for production thereof

1983-08-08

1986-02-04

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Nonplanar, uniform-thickness material having symmetrical...

B21H 106

Patent

active

045686173

ABSTRACT:
A rolling mill for making endless bands, preferably by cold working precipitation hardenable stainless steel, includes a stationary central work roller and a pair of moveable work rollers, each carried by a corresponding carriage. The movable work rollers are backed by intermediate and drive rollers so as to be stiff in response to bending forces. The drive rollers provide rotary motion to all rollers. By elastically distorting a preform and then rolling it in the peripheral direction, the band is cold worked to a desired thickness. The preform may be obtained by parting an annular ring from tubular stock. Subsequent precipitation hardening of the cold worked band produces a stainless steel band having enhanced strength and endurance, and which is free of welds and similar discontinuities while exhibiting stress relieved edges rather than stress concentrated edges.

REFERENCES:
patent: 3314143 (1967-04-01), McDonald et al.
patent: 3434322 (1969-03-01), Cowles et al.
patent: 3507135 (1970-04-01), Polakowski
patent: 3824820 (1974-07-01), Jeuken et al.
patent: 4173134 (1979-11-01), Huuskonen et al.
patent: 4176538 (1979-12-01), Kymmell et al.

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