Apparatus and method for forming truss tubular web components ha

Details Apparatus and method for forming truss tubular web components ha Apparatus and method for forming truss tubular web components ha

1976-04-09

1977-03-29

Vlachos, Leonidas

Metal deforming

With cutting

By shearing tool-couple

72367, 29155R, B21D 2800

Patent

active

040142019

ABSTRACT:
Method for forming a symmetrically bifurcated terminal portion on an existing truss web component having a tubular medial portion and flattened web ends comprises shearing one of the web ends for removing tubing skin from its longitudinal margins, forming two unsupported side walls, and then flattening the side walls. The flattened side walls are wedged apart, separating them relative to one another and forming the symmetrically bifurcated terminal portion. The opposed web end is flattened, forming a comparatively large flattened terminal portion. The apparatus includes a frame having mounted thereon shearing means, splitting means, flattening means, and drive means for accomplishing the foregoing operations.

REFERENCES:
patent: 1828235 (1931-10-01), Van Hattum
patent: 1891785 (1932-12-01), Siebert et al.
patent: 2133092 (1938-10-01), Gettig
patent: 3754428 (1973-08-01), Alexoff
patent: 3866522 (1975-02-01), Oswalt
patent: 3972215 (1976-08-01), Elkins

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