Allowance: The permissible difference in dimensions to allow for various fits.
Backlash: The clearance between the meshing gear or splined members which must be taken up before driving in the reverse direction.
Base Metals: Metals which corrode, tarnish or oxidize on exposure to air, moisture or heat.
Bearing: The part of a mechanism in which a rotating shaft revolves and is supported
Bore: The internal diameter of a cylindrical part.
Brittleness: The liability of a metal to fracture on receiving a blow or shock.
Burr: A rough or sharp edge left on metal after it has been worked
Bush: A hollow, cylindrical one piece bearing.
Clearance: The space provided between two working parts to allow for freedom of movement, lubrication and variation of size or position due to heat or distortion.
Conductivity: The ability or capacity of a metal to conduct heat or electricity.
Drawing: Pulling a metal through a die or succession of dies in order to produce a required cross sectional shape.
Ductility: The property whereby a metal can be drawn ot into a wire without cracking.
Elasticity: The capacity of a material to return to its original dimensions on the removal of distorting forces .
Extrusion: Forcing plastic material through a die of the required shape by means of hydraulic pressure.
Fatigue: The diminishing resistance to fracture caused by fluctuating stresses.
Forging: The operation of shaping hot metals bu means of hammers of presses.
Fusibility: The capacity of being melted.
Hardness: The ability of a material to resist abrasion, penetration, indentation or cutting action.
Journal: That part of a shaft which is in contact with and supported by a bearing.
Malleability: The property of being permanently extended or flattened by hammering, rolling, or pressing without rupture.
Mandrel: An accurately ground shaft for supporting or locating a hollow part during measurement, or machining.
Spinning: Shaping sheet metal by applying pressure while revolving.
Stamping: Shaping and/or cutting by means of dies in a press.
Swaging: Shaping by pressure or hammering the metal in a die of required shape.
Tenacity: The property of resisting breakage when under the application of a pulling force.
Tolerance: A permissible range of dimensions of finished component provided to cover unavoidable inaccuracies in manufacture.
Toughness: The property of resisting breakage when subjected to bending, a sudden blow or twist.
Backlash: The clearance between the meshing gear or splined members which must be taken up before driving in the reverse direction.
Base Metals: Metals which corrode, tarnish or oxidize on exposure to air, moisture or heat.
Bearing: The part of a mechanism in which a rotating shaft revolves and is supported
Bore: The internal diameter of a cylindrical part.
Brittleness: The liability of a metal to fracture on receiving a blow or shock.
Burr: A rough or sharp edge left on metal after it has been worked
Bush: A hollow, cylindrical one piece bearing.
Clearance: The space provided between two working parts to allow for freedom of movement, lubrication and variation of size or position due to heat or distortion.
Conductivity: The ability or capacity of a metal to conduct heat or electricity.
Drawing: Pulling a metal through a die or succession of dies in order to produce a required cross sectional shape.
Ductility: The property whereby a metal can be drawn ot into a wire without cracking.
Elasticity: The capacity of a material to return to its original dimensions on the removal of distorting forces .
Extrusion: Forcing plastic material through a die of the required shape by means of hydraulic pressure.
Fatigue: The diminishing resistance to fracture caused by fluctuating stresses.
Forging: The operation of shaping hot metals bu means of hammers of presses.
Fusibility: The capacity of being melted.
Hardness: The ability of a material to resist abrasion, penetration, indentation or cutting action.
Journal: That part of a shaft which is in contact with and supported by a bearing.
Malleability: The property of being permanently extended or flattened by hammering, rolling, or pressing without rupture.
Mandrel: An accurately ground shaft for supporting or locating a hollow part during measurement, or machining.
Spinning: Shaping sheet metal by applying pressure while revolving.
Stamping: Shaping and/or cutting by means of dies in a press.
Swaging: Shaping by pressure or hammering the metal in a die of required shape.
Tenacity: The property of resisting breakage when under the application of a pulling force.
Tolerance: A permissible range of dimensions of finished component provided to cover unavoidable inaccuracies in manufacture.
Toughness: The property of resisting breakage when subjected to bending, a sudden blow or twist.
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