Pipe-locking formation method and apparatus

Details Pipe-locking formation method and apparatus Pipe-locking formation method and apparatus

1982-04-13

1984-09-11

Combs, E. Michael

Metal deforming

By tool-couple embodying nonplanar tool-face

With complementary tool-faces

51236, 269 60, 269289MR, 269902, B21D 1702

Patent

active

044702914

ABSTRACT:
A method and an apparatus for forming arcuate radially-extending locking projections on the ends of pipes is disclosed, in which the pipe end is marked about its external circumference into spaced forming zones, and the projections are then formed employing one of the zone markings as an index of the location of a second zone marking spaced therefrom, the apparatus including an elevatable pipe support and a forming head provided with a male punch assembly and a female die member, the male punch assembly being operable by a power source and being located within the bore of the pipe.

REFERENCES:
patent: 2733330 (1956-01-01), Blewett
patent: 4052880 (1977-10-01), Cullinan et al.

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