Method for producing cold roll-formed structures

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

1987-02-26

1988-09-13

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, 72 46, B21B 1500, B21D 1304

Patent

active

047700181

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: 2053375 (1936-09-01), Nicholas
patent: 2085829 (1937-07-01), Rogers
patent: 3138981 (1964-06-01), Werthman
patent: 3187534 (1965-06-01), Kalpakcioglu
patent: 3205688 (1965-09-01), Paulton
patent: 3209432 (1965-10-01), Cape
patent: 3387418 (1968-06-01), Tyrer
patent: 3393547 (1968-07-01), Kortan
patent: 3460367 (1969-08-01), Subovici
patent: 3488989 (1970-01-01), Rakich et al.
patent: 3538732 (1970-11-01), Noda et al.
patent: 3834207 (1974-09-01), Laigle et al.
patent: 4023250 (1977-05-01), Sproul
patent: 4055976 (1977-11-01), Kraft
patent: 4087226 (1978-05-01), Mercer
patent: 4173876 (1979-11-01), Schaefer
patent: 4206578 (1980-06-01), Mieyal
patent: 4233833 (1980-11-01), Balinski
patent: 4241146 (1980-12-01), Sivachenko et al.
patent: 4317350 (1982-03-01), Sivachenko et al.
patent: 4578979 (1986-04-01), Abe et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-799800