What is the purpose of stakes and stake plates in metal forming?

The purpose of stakes and stake plates in metal forming is to back up sheet metal when forming different curves, angles, and seams. Stakes are typically fixed devices that provide a solid surface against which the metal can be shaped. This support is essential because it allows for precise manipulation of the metal as it is formed, ensuring that curves and angles are created accurately and consistently. The design of stakes can vary depending on the specific forming task, allowing for a range of shapes and profiles to be achieved in the metal. This method is particularly useful in sheet metal work, where precision is key to achieving the desired final shape and maintaining structural integrity.