The cutting action along a straight line to separate metal by two moving blades. Machines used for shearing are called squaring shears. In shearing, a narrow strip of metal is plastically deformed to the point where it fractures at the surfaces in contact with the blades. The fracture then propagates inward to provide complete separation. It is used for producing blanks.
Knowing and appreciating the craft of metal fabrication - by Tim Heston The recipe for precision metal fabrication includes technology and craft. We hear a lot about the technology, but not so much about the craft.
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