Mechanical Metallurgy |
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Page 519
... billet in the container . For indirect extrusion there is no relative motion between the billet and the container wall . Therefore , the extrusion pressure is approximately constant with increasing ram travel and represents the stress ...
... billet in the container . For indirect extrusion there is no relative motion between the billet and the container wall . Therefore , the extrusion pressure is approximately constant with increasing ram travel and represents the stress ...
Page 520
... billet occurs at low extrusion speeds . When this becomes pronounced , the pressure required for direct extrusion will actually increase with increasing ram travel because of the increased flow stress as the billet cools . The higher ...
... billet occurs at low extrusion speeds . When this becomes pronounced , the pressure required for direct extrusion will actually increase with increasing ram travel because of the increased flow stress as the billet cools . The higher ...
Page 524
... billet , the center of the billet moves faster than the periphery . As a result , the dead metal zone extends down along the outer surface of the billet . After about two - thirds of the billet is extruded , the outer surface of the ...
... billet , the center of the billet moves faster than the periphery . As a result , the dead metal zone extends down along the outer surface of the billet . After about two - thirds of the billet is extruded , the outer surface of the ...
Contents
Introduction 3 35678OORE | 3 |
Stress and Strain Relationships for Elastic Behavior | 17 |
Elements of the Theory of Plasticity | 54 |
Copyright | |
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alloys aluminum angle annealed ASTM axis behavior bending billet brittle fracture Burgers vector cent compressive constant crack creep rate decrease determined diameter direction dislocation line distribution drawing ductile edge dislocation effect elastic elongation equation extrusion factor failure fatigue limit flow curve flow stress force forging forming friction given grain boundaries hardness high-temperature increase indentation lattice length load longitudinal mandrel martensite material maximum measured mechanical metallurgical Metals Park method modulus notch obtained occurs orientation particles plastic deformation pressure principal stresses Proc produced properties punch quenched radius ratio reduction of area region relationship residual stresses rolling screw dislocations shear stress sheet shows single crystals slip plane Society for Metals specimen steel strain energy strain hardening strain rate stress-strain curve structure surface temper tensile strength tensile stress theory thickness tion torsion Trans transition temperature tube yield strength yield stress στ