What Is the Maximum Degree of Bend?
This may sound simple; however, it is not if you are not given prints and are asked to reproduce parts form sample pieces. Rotary draw bending tooling usually is designed to accept a maximum bend angle of 180 degrees. When selecting bending machinery for your application, be sure the machine program or system allows for slight overbending to compensate for springback during the bend cycle. Selecting a bending machine with a programmable bend angle setting can provide high bend accuracy and ease of use. Degree of bend also affects bend quality. When working with a new material, try making two test bends—one at 45 degrees and one at 180 degrees. You may see slightly different results in the workpiece, because greater bend angles produce more wall thinning and deformation in the material.
