Apparatus for producing cold roll-formed structures

Details Apparatus for producing cold roll-formed structures Apparatus for producing cold roll-formed structures

1989-07-19

1990-11-13

Crane, Daniel C.

Metal deforming

By deflecting successively-presented portions of work during...

By use of deflector arranged to bend work transversely of...

72180, 72181, B21B 1500, B21D 1304

Patent

active

049693468

ABSTRACT:
A cold-forming method is disclosed for thinning localized, longitudinally extending portions of sheet metal by lateral shear deformation without any substantial longitudinal deformation. With such method, it is possible to produce elongated members which are thinned in zones of low stress and are thicker in zones of higher stress so as to provide high metal use efficiency. The method is performed by an apparatus including a rotating mandrel providing opposed conical surfaces and pressure rolls operable to apply forces substantially perpendicular to the axis of rotation of the mandrel to cause a portion of the sheet metal to yield in shear to reduce the thickness of longitudinally extending portions of the sheet metal. The forces are applied in a plane normal to the length of the strip in order to avoid longitudinal elongation.

REFERENCES:
patent: 1814593 (1931-07-01), Gersman
patent: 1939356 (1933-12-01), Lindgren
patent: 2027215 (1936-01-01), Williams
patent: 2085829 (1937-07-01), Rogers
patent: 3187534 (1965-06-01), Kalpakcioglu
patent: 3205688 (1965-09-01), Paulton
patent: 3209432 (1965-10-01), Cape
patent: 3393547 (1968-07-01), Kortan
patent: 3488989 (1970-01-01), Rakich
patent: 4055979 (1977-11-01), Kraft
patent: 4087226 (1978-05-01), Mercer
patent: 4204416 (1980-05-01), Chumanov
patent: 4233833 (1980-11-01), Balinski
patent: 4241146 (1980-12-01), Sivachenko
patent: 4317350 (1982-03-01), Sivachenko
patent: 4578979 (1986-04-01), Abe
patent: 4815201 (1989-03-01), Harris

Affiliated with

Also associated with

Rating

Apparatus for producing cold roll-formed structures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for producing cold roll-formed structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for producing cold roll-formed structures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-770281