CALCULATING A MULTISTEP RADIUS BEND
A radius bend is a specific type of bend characterized by a very large inner radius, giving the sheet metal a curved and rounded appearance. This technique is used in numerous industrial sectors, from appliance manufacturing to automotive component production.
Also known as a multistep bend, bumping, or sheet metal calendering with a press brake, it allows for the creation of very large radii by dividing the bend into a series of small, successive bends without the need for specialized radius punches. Our online calculator is your ideal assistant for accurately determining bending parameters.
Steps for Calculating a Radius Bend:

Define the radius: Determine the desired inner radius of the bend based on the technical drawing of the part.

Calculate the number of steps: Based on the desired radius and sheet thickness, calculate the number of small increments (steps) needed to achieve the desired curvature.

Calculate the angle of each step: Divide the total bend angle by the number of steps to obtain the angle of each increment.

Calculate the step distance: Determine the distance between each step, or the step pitch.

Set up the press brake: Set the press brake parameters according to the calculations, adjusting the die opening, punch stroke, and bend angle.

Perform the bend: Perform the bend gradually, increasing the angle at each step.

Inspect the bend: Verify that the bend has been performed correctly by measuring the resulting radius and comparing it to the desired one.
Automatically Calculate Parameters for a MultiStep Bend
To simplify calculations and optimize the bending process, you can use VICLA's online calculator for radius bends: by entering the part data (material, thickness, desired radius), the tool automatically provides the optimal bending parameters.
Start calculating now!