Why are flanges used in sheet metal structures?

Flanges play a critical role in enhancing the structural integrity and functionality of sheet metal assemblies. Their primary purpose is to increase the rigidity of the assembled parts, providing a more robust structure. By extending the edges of the metal sheets, flanges create a surface area that allows for stronger connections between different components of a structure. This design not only helps distribute loads more evenly across the assembly but also facilitates secure attachment points for connecting parts more effectively.

When flanges are incorporated into sheet metal designs, they help prevent deformation under stress and maintain alignment during service, which is essential for the long-term durability of the structure. This ability to strengthen connections makes flanges a vital element in ensuring that sheet metal structures can withstand external forces while maintaining their intended shape and function.