Mechanical Metallurgy |
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Page 638
George E. Dieter. 18 EXTRUSION 18-1 CLASSIFICATION OF EXTRUSION PROCESSES Extrusion is the process by which a block of metal is reduced in cross section by forcing it to flow through a die orifice under high pressure . In general , ...
George E. Dieter. 18 EXTRUSION 18-1 CLASSIFICATION OF EXTRUSION PROCESSES Extrusion is the process by which a block of metal is reduced in cross section by forcing it to flow through a die orifice under high pressure . In general , ...
Page 640
George E. Dieter. Piston Cable Lead Fig . 18-2 Extrusion of lead sheath on electrical cable . or by a two - step extrusion operation in which a solid billet is first pierced and then extruded . Extrusion was originally applied to the ...
George E. Dieter. Piston Cable Lead Fig . 18-2 Extrusion of lead sheath on electrical cable . or by a two - step extrusion operation in which a solid billet is first pierced and then extruded . Extrusion was originally applied to the ...
Page 644
... extruded hot so as to take advantage of the decrease in flow stress or deformation resistance with increasing temperature . Since hot - working introduces the problems of oxidation of the billet and the extrusion tools and softening of ...
... extruded hot so as to take advantage of the decrease in flow stress or deformation resistance with increasing temperature . Since hot - working introduces the problems of oxidation of the billet and the extrusion tools and softening of ...
Contents
Elements of the Theory of Plasticity | 3 |
Dislocation Theory | 150 |
Strengthening Mechanisms | 190 |
Copyright | |
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alloys angle annealed atoms axis behavior billet brittle fracture Burgers vector cold-worked components compression constant crack criterion cycles decrease determined diameter direction dislocation line ductile edge dislocation elastic elongation energy equations extrusion factor failure fatigue limit fibers flow curve flow stress force forging friction given grain boundaries hot-working hydrostatic increases lattice length load machining martensite material matrix maximum measured mechanical Metals Park modulus normal stress notch occurs orientation particles percent plastic deformation plastic strain polymer pressure produced properties ratio reduction region residual stresses rolling screw dislocation shear strain shear stress sheet shown in Fig shows single crystals slip plane slip systems Society for Metals solid specimen steel strain hardening strain rate stress-strain curve structure surface tensile strength tensile stress tensor theory thermal thickness tool torsion Trans usually velocity workpiece yield strength yield stress York