Square Tube

CURVED STEEL

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Round Tube

WHY USE CURVED STEEL?

Reduce Risk & Control Cost

Hardway Beam

USE CURVED STEEL

It's Recyclable & Looks Great

Heat Exchangers

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Since 1939

Bending Beams

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Square Beams

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Large Round Tubes

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Difficult & Unusual Parts

I-Beams

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Curved Beams

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Bent Beams

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Lowest Distortion

Pipe Spools

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ROLLING / PYRAMID ROLLING


AISC Design Guide 33 Curved Member Design Section 2.3.1

Pyramid roll bending is a cold-bending method where a member is bent progressively by repeatedly passing it through a set of three adjustable rolls in a pyramid arrangement. Force is applied by opposing rolls. The distance between rolls is manipulated before each pass, bending the member into successively smaller radii. This process is repeated until the proper curvature is formed. Pyramid roll bending can be used to provide curvature up to a 360° angle. When curving I-shaped sections, the tension and compression flanges tend to bend locally toward one another. These flange forces induce web compression stresses, potentially causing web buckling distortion. This can be controlled with supplementary rolls providing a restraining tension force on the inner surface of the tension flange on both sides of the web. In some cases, the web is restrained against buckling by compression rollers on each side of the web. To provide support during the bending operation, the rolls are contoured to match the cross-sectional shape of the workpiece. Contoured rolls can also be used for other cross-sectional profiles. Special rolls can be used to stabilize the cross-sectional elements and reduce distortion in common rolled shapes.


Videos


DAVI MCP30 Roll Bending Machine

Roll Bending of Steel Wide Flange

Roll Bending of Tube Steel

Roll Bending and QC of Steel Pipe

Roll Bending of Steel Angle

Pyramid Roll Bending of Beam/Wide Flange



Photos


Your Steel Bending Experts

People Like Us!

I have been very impressed with the customer service that I've received from Albina and with the speed that your company produced my parts. The helical spiral stringers that you formed are without doubt the most important element in this project. When the project has been completed successfully, it will be due in large measure to the efforts of Albina. This has been my first experience with your company and it has been a pleasant one.


Roger H.

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