Roll Forming Line Automation: All About Dies

What is the key that makes one manufacturer’s roll forming line enormously profitable and another manufacturer’s line marginal, even when they are producing similar products on the same model roll former? The key is to have the proper auxiliary systems...

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Formtek is Advancing Roll Forming Accessories

Formtek, Inc. of Cleveland, Ohio, a member of the Formtek Group, has been working to improve roll forming accessory products to the North American marketplace.  One such accessory is the idle side pass.  For years, idle side passes, used...

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Tube Mills & Quick-Change: Timing is Everything

Part 3 It’s time now to examine the overall pros and cons of climbing on board rafting as a tube mill quick-change design compared with the still-popular conventional method for producing brand new tube shapes and sizes. For a tube mill,...

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Tube Mills & Quick-Change: Rafts & Drive Shafts

Part 2 Moving into “rafting” is an important upgrade for ambitious tube mills aiming for expansion and efficiency in a highly-competitive field where the ability to “quick-change” is a key enabler of performance. The moveable subplates of rafts, unlike the traditional...

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Tube Mills & Quick-Change: One Step At A Time

Part 1 For many tube mills faced with the constant challenge of adjusting or exchanging tooling for making tubes with different dimensions, a frequent question concerns the existing changeover equipment. Should the mill be upgraded with new tooling, i.e. rolls...

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The Complete Roll Forming Line

The complete roll forming line can take one of two approaches to the processing of a particular part. It can be arranged to produce that part from: Precut lengths Coiled strip Some parts demand the cut length approach; however, the most efficient, productive, consistent,...

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Identifying Appropriate Roll Materials

Roll Materials and Roll Life Rolls are usually made from tool steel, the grade being dependent on the expected production and finish of the piece part.  For general duty applications where a smooth finish strip is to be formed or...

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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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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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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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