Surface Treatments and Their Effect on Post-Bend Strength

Aluminum profiles often receive surface treatments to improve corrosion resistance and appearance. But these coatings serve more than a cosmetic function. They can also influence how the profile behaves after bending. These treatments mainly influence surface integrity and fatigue resistance but do not change the underlying tensile strength of the aluminum profile. This article looks at how different surface treatments behave during the bending process and what that means for the strength and durability of your components.