Which machine is used to shape the edge of metal into various designed shapes?

The machine specifically used to shape the edge of metal into various designed shapes is a box brake. A box brake is a type of bending machine that allows for precise bending and shaping of metal sheets along a straight line. Its design typically features a blade that can be adjusted to bend the metal at different angles and can create various shapes, such as flanges and folds, depending on the setup and the nature of the work. This capability makes it particularly useful in sheet metal fabrication, allowing for the creation of components that meet specific design requirements.

While other machines, like a hydraulic press, can also shape metal, they are generally used for different purposes, such as forming, punching, or compressing materials rather than specifically bending edges into defined shapes. The rotary machine also serves distinct functions, primarily revolving around rotation and cutting rather than bending. An arbor press, used for heavier pressing tasks such as pressing gears onto shafts or fitting bearings, does not focus on shaping edges in the versatile manner that a box brake does. Thus, the box brake is the ideal choice for shaping edges into designed forms effectively and accurately.