Tips for Positioning Your Shape

Accessory Tooling It is sometimes necessary to mount rolls on vertical axes, between driven roll stages, to exert side pressure to a shape when it is needed for forming or guiding. Likewise, when cut-to-length strips are fed through a roll forming...

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Roll Form Tooling: Selecting Roll Stages

Tooling in a roll forming machine predominately consists of the driven forming rolls, together with the spacers that hold them laterally in alignment on the spindles.  The importance of proper roll design, materials and manufacture cannot be emphasized enough. ...

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Forming Machine Drives

The OEM will determine the correct amount of horsepower required to form the section.  The horsepower takes into account four critical items.  They are: Material Thickness Total number of forming stands Desired line speed Yield strength of material With these items in mind the...

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Machine Effects on a Formed Section

The capability of any given machine with regard to height or depth of the section is measured mainly by the vertical distance available between spindles.  This, together with the distance from the centerline of the bottom spindle to the...

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Choosing Your Roll Forming Machine

The roll forming machine is the instrument needed to convert strip to a finished cross-section.  Common to all makes is a fabricated base, roll spindles, spindle support housings and a drive. Integral Drive Type The most popular forming machine is the...

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Distortions: Springback & End Flare

There are two main elastic distortion phenomena that both the shape and tool designer must be aware of when forming: "springback" and "end flare". Let's break them down one at a time, explaining what they are and how they...

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At a Glance: What is Roll Forming?

Fundamentally, roll forming is defined as a continuous, high-volume, fabricating process in which a desired shape is formed from a flat strip of metal by passing it through a series of matching pairs of contoured rolls. Only bending takes...

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How We Cut Down Machine Changeover Time

Some manufacturing processes, particularly roll forming, have struggled to meet order fulfillment on the fly, especially due to the increased emphasis on small batch or single piece production in recent years.  Due to the long machine changeover times required to switch...

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Yoder Retrofit Kits for the M-Style Roll Forming Stands

Yoder's M-style roll forming stands can be retrofitted to handle higher line speeds, greater material capacity and longevity between maintenance cycles and reduced changeover times. Recent installations have enabled tube mill customers to increase material capacity by 15%, while...

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Yoder Introduces XW-Series Forming Machines

Yoder recently introduced its XW-series of driven forming stands for roll forming and tube mills. The three models of XW-Series driven stands incorporate a rigid, gusseted housing design, which has years of proven performance in the QVW-Series machines, with...

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