When determining the setback for bending, which factor must be considered?

The correct factor to consider when determining the setback for bending is the thickness of the material. Material thickness directly impacts how much the material will stretch and compress during the bending process. A thicker material will have a different setback requirement compared to a thinner material because the material's resistance to deformation changes with its thickness.

When planning a bend, the radius of the bend must be determined relative to the thickness to ensure the material can bend without leading to failure or excessive strain. As a result, the relationship between the setback and material thickness is essential for achieving accurate bend dimensions and maintaining the integrity of the material.

Surface finish, ambient temperature, and color of the material may have effects on other aspects of material properties and processing but do not directly influence the setback properly calculated for bending operations. Understanding this relationship is a key part of material processing and forming, especially in aviation applications where precise component dimensions are critical.