Roll forming

is a continuous bending operation in which a long strip of metal (typically coiled steel) is passed through consecutive sets of rolls, or stands, each performing only an incremental part of the bend, until the desired cross-section profile is obtained

Roll Forming Machine Parts

Three-Roll Forming

a process for forming plate, sheet, bars, beams, angles, or pipe into various shapes by passing the work metal between three properly spaced rolls.

Three-Roll Forming

It has a rollers that set on a pyramid like positions.

Three-Roll Forming Machine

The Concept of Pyramid like position of rollers.

Advantages

Increased production and less downtime

defects are easier to control

Lengths are not limited

Disadvatages

Material can jam or double up in production and cause damage to the roll former and tooling

If floor space is a concern, longer parts require a material conveyor between the pre-notch press and the roll former, equal to or greater than the longest part

Conclusion

From the research that have been done, it can be concluded that the roll forming method is better than the conventional Cast-In-Situ method in terms of the labor productivity. It can be seen in the number of work hours to install structural components by using roll forming is less compared to the Cast-In-Situ method.

Typical applications

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