SHEAR. (1) That type of force that causes or tends to cause two contiguous parts of the same body to slide relative to each other in a direction parallel to their plane of contact. (2) A type of cutting tool with which a material in the form of wire, sheet, plate or rod is cut between two opposing blades. (3) The type of cutting action produced by rake so that the direction of chip flow is other than at right angles to the cutting edge.
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ULTIMATE STRENGTH. The maximum conventional stress (tensile, compressive or shear) that a material can withstand.
SCLEROSCOPE TEST. A hardness test in which the loss in kinetic energy of a falling metal “tup,” absorbed by indentation upon impact of […]
ACID EMBRITTLEMENT. A form of hydrogen embrittlement that may be induced in some metals by acid treatment.