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Shearing, also known as die cutting, [1] is a process that cuts stock without the formation of chips or the use of burning or melting. Strictly speaking, if the cutting blades are straight the process is called shearing; if the cutting blades are curved then they are shearing-type operations. [2]
Shear forming and conventional spinning are being used less than other manufacturing processes such as deep drawing and ironing. Since it can achieve thin sectioned parts of almost any shape, shear forming is a versatile process used widely in the production of lightweight items.
Severe plastic deformation (SPD) is a generic term describing a group of metalworking techniques involving very large strains typically involving a complex stress state or high shear, resulting in a high defect density and equiaxed "ultrafine" grain (UFG) size (d < 1000 nm) or nanocrystalline (NC) structure (d < 100 nm).
Shear line (locksmithing), where the inner cylinder ends and the outer cylinder begins in a cylinder lock; Shearing (manufacturing), a metalworking process which cuts stock without the formation of chips or the use of burning or melting; Shear (sheet metal), various tools to shear sheet metal; Board shear, in bookbinding, a tool to cut board or ...
Punching is a forming process that uses a punch press to force a tool, called a punch, through the workpiece to create a hole via shearing. Punching is applicable to a wide variety of materials that come in sheet form, including sheet metal , paper , vulcanized fibre and some forms of plastic sheet.
A shearing or punching process is used in a press, so as to cut vertically down and perpendicular to the surface, working from the edge of a work-piece. Sometimes the goal is merely the notch itself, but usually this is a precursor to some other process: such as bending a corner in sheet or joining two tubes at a tee joint, notching one to fit ...
In engineering, shear strength is the strength of a material or component against the type of yield or structural failure when the material or component fails in shear. A shear load is a force that tends to produce a sliding failure on a material along a plane that is parallel to the direction of the force.
Shearing was most commonly used to make woollens and worsted materials. It was a part of dry finishing of woollen and worsted goods. Previously, shearing was also a component of gigging or napping; when partially produced goods were exposed to shear in order to improve the impact of gigging or napping, the process was referred to as "cropping".