The graphic below depicts a simple single line drawing of the circular geometry components that relate to most bending applications. When specifying and detailing curved steel, there are a minimum number of components of this circular geometry that must be dimensionally specified. These components can be specified in different minimum combinations that will allow the bender to generate other required information for processing. Some examples of the combinations are as follows:
*Additional information for bending may be required for processing depending on fabricated member requirements. For example, if tangents are required, the length of tangents needs to be provided separately from other dimensional components.
Ability to produce from customer supplied samples, drawings, fixtures or templates.
Material, including alloy or temper
Outside diameter (OD) and wall thickness (WT)
Centerline radius (CLR)
Minimum straight bend between tangent points (ST)
Maximum bend angle (BA)
Degree of bend x radius of bend x .01745 + all straight material
90 degree bend, 6" radius, with 12" tangent on each end,
90 x 6 x .01745 = 9.423" + 24" = 33.423" total material length
*Distortion estimates and samples provided upon request to eliminate any uncertainty.