Mechanical Metallurgy |
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Page 561
... FRICTION AND LUBRICATION The friction forces developed between the workpiece and the forming tools are an important consideration in metalworking . In the analysis of the forces in metalworking ( Sec . 15-2 ) , we neglected the friction ...
... FRICTION AND LUBRICATION The friction forces developed between the workpiece and the forming tools are an important consideration in metalworking . In the analysis of the forces in metalworking ( Sec . 15-2 ) , we neglected the friction ...
Page 563
George E. Dieter. Fig . 15-18 Friction hill for homogeneous com- pression of a disk with Coulomb friction . IPmax Friction hill At the outersurface of the disk , r = a , σ , = 0 , and p = σ0 , so that Therefore , or C = ln σ0 +2 μα h ...
George E. Dieter. Fig . 15-18 Friction hill for homogeneous com- pression of a disk with Coulomb friction . IPmax Friction hill At the outersurface of the disk , r = a , σ , = 0 , and p = σ0 , so that Therefore , or C = ln σ0 +2 μα h ...
Page 565
... friction factor for describing friction in metalworking processes . It appears to be particularly suited for hot - working processes involving large deformations , such as forging and extrusion . In processes such as cold - rolling and ...
... friction factor for describing friction in metalworking processes . It appears to be particularly suited for hot - working processes involving large deformations , such as forging and extrusion . In processes such as cold - rolling and ...
Contents
Introduction 325 | 3 |
Elements of the Theory of Plasticity | 72 |
Plastic Deformation of Single Crystals | 105 |
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 metallurgical 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 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