overbent

Overbent refers to a condition where a material, typically metal or plastic, has been subjected to excessive bending, resulting in a permanent deformation beyond its elastic limit. This means that when the bending force is removed, the material does not return to its original shape. The extent of overbending depends on the material's properties, such as its yield strength and ductility, as well as the magnitude and duration of the applied force.

In engineering and manufacturing, overbending is usually an undesirable outcome, leading to compromised structural integrity and functionality. For instance, a metal component that has been overbent may have a reduced load-bearing capacity or may fracture prematurely under stress. In the case of plastics, overbending can lead to visible creases or even cracks.

However, in some specific applications, controlled overbending, often referred to as "set bending" or "plastic deformation," is intentionally employed. This process can be used to create permanent shapes or to achieve a specific fit. For example, in automotive manufacturing, some metal parts are intentionally overbent to ensure a tight fit after assembly. Repairing overbent components can be challenging; often, it requires specialized techniques or complete replacement.