Mechanical Metallurgy |
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Page 519
... 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 required to deform the metal in the die ...
... 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 required to deform the metal in the die ...
Page 520
... extruded metals like brass and alumi- num can be worked at extrusion ratios greater than 100 , while metals more difficult to extrude like nickel - base high - temperature alloys are limited to extrusion ratios of around 20 . Most ...
... extruded metals like brass and alumi- num can be worked at extrusion ratios greater than 100 , while metals more difficult to extrude like nickel - base high - temperature alloys are limited to extrusion ratios of around 20 . Most ...
Page 525
... extrusion , and therefore this metal must be discarded . The length of this defect can be reduced considerably by inclining the face of the ram at an angle to the ram axis.1 Surface ... Extrusion 20-6 Extrusion under Ideal Conditions.
... extrusion , and therefore this metal must be discarded . The length of this defect can be reduced considerably by inclining the face of the ram at an angle to the ram axis.1 Surface ... Extrusion 20-6 Extrusion under Ideal Conditions.
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