Contour forming conical shapes

Details Contour forming conical shapes Contour forming conical shapes

1982-11-10

1984-10-09

Ramsey, Kenneth J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Intermediate article

428595, 72171, 228158, B23K 3108

Patent

active

044761945

ABSTRACT:
A truncated conical segment is made by the steps of longitudinally welding two pieces of metal, then contour rolling the weldment to preferentially reduce one of the pieces of the weldment more than the other. This provides a skewed trapezoid shape which is then 3-roll formed into a ring having a conical shape. The angle of the cone is a function of the preferential reduction in the second contour rolling step.

REFERENCES:
patent: 2674294 (1953-02-01), Ekberg
patent: 2815790 (1957-12-01), Mayrath
patent: 3287953 (1966-11-01), Boldrini
patent: 3623349 (1971-11-01), Hausler
patent: 3737979 (1973-06-01), Rakich
patent: 3999416 (1976-12-01), Brooks
patent: 4195509 (1980-04-01), Herburg
"Rolling of Rings", W. Johnson and A. G. Mamalis, International Metals Reviews, 1979, No. 4, pp. 137-148.
Metals Handbook, 8th Edition, vol. 4, p. 222, American Society for Metals, Metals Park, Ohio.

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