Metal bending is the process of deforming metal into a specific shape or angle by applying force without cutting the material. This technique alters the metal’s geometry, which can be achieved through various methods such as pressing, hammering, or folding, often using specialized tools and machinery.
The origins of metal bending trace back to ancient civilizations, where early metalsmiths shaped precious metals for jewelry and utilitarian objects. Over centuries, the practice evolved significantly, particularly with the industrial revolution, which introduced mechanized methods that increased precision and efficiency in metalworking.
At its core, the principle of metal bending involves applying a force that exceeds the metal’s yield strength but stays below its ultimate tensile strength. This ensures the metal deforms plastically and retains its new shape permanently. Understanding the stress-strain curve is crucial, as it helps predict how different metals react under various bending processes. Techniques vary based on the type of metal used, such as metal sheet or metal rod, and the specific application, balancing factors like angle accuracy, repeatability, and material integrity.
