We have a large number of radius tools at our disposal for bending plate metal with specific inner radii. However, there are orders where radii are required that are larger than the tools in stock.

At Rime larger radii up to a maximum sheet thickness of 6 mm can be produced by roll bending. For higher material thicknesses, radii can be produced by bump-bending.

Bump-bending (also known as step-bending) is a computer-controlled bending process in which a pre-calculated number of bends are applied in steps to the plate metal to produce the desired radius.

The CNC controls of our bending machines adjust the plunge depth of the punch and the stop for the bending process with absolute precision. However, the dimensional accuracy of the radius depends on several factors. In principle, the rounding dimension is defined by the number of bends and the thickness of the material.

At bump-bending, the number of bending steps determines how smooth the surface of the radius is. The closer these steps are to each other, the smoother the radius is. Extremely smooth radii can be produced with this technique. The more bending steps are required to bend a radius, the more time-consuming and costly the production becomes.

See also

Bending Film

With bending film, high-quality plate metal can be bent without scratching the surface.

Read more
Bending with embossing

Bending with embossing is a process where plate metals are completely pressed into the die with great force.

Read more
Free Bending

In this Wiki article you will learn how free bending works and how this process differs from other methods.

Read more

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