MECHANICAL METALLURGY |
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Page 514
... mandrel to the end of the ram , The clearance between the mandrel and the die wall determines the wall thickness of the tube . Tubes are 514 Extrusion 20-1 Classification of Extrusion Processes.
... mandrel to the end of the ram , The clearance between the mandrel and the die wall determines the wall thickness of the tube . Tubes are 514 Extrusion 20-1 Classification of Extrusion Processes.
Page 543
... Mandrel Ox Mandrel f1p - Ox + dox f2p The state of stress on an element of a tube being drawn with a sta- tionary mandrel is shown in Fig . 21-7 . The axial draw stress σ is one of the principal stresses . The same die pres- sure p is ...
... Mandrel Ox Mandrel f1p - Ox + dox f2p The state of stress on an element of a tube being drawn with a sta- tionary mandrel is shown in Fig . 21-7 . The axial draw stress σ is one of the principal stresses . The same die pres- sure p is ...
Page 544
... mandrel interface = a one - half apex angle of die Bone - half apex angle of mandrel The solution of Eq . ( 21-21 ) results in the following equation for the draw stress at the exit section of the die , where h = Oxf 1+ B ' σο B ...
... mandrel interface = a one - half apex angle of die Bone - half apex angle of mandrel The solution of Eq . ( 21-21 ) results in the following equation for the draw stress at the exit section of the die , where h = Oxf 1+ B ' σο B ...
Contents
Introduction | 5 |
The Torsion Test | 10 |
Stress and Strain Relationships for Elastic Behavior | 17 |
Copyright | |
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alloys aluminum annealing ASTM axis behavior brittle fracture Burgers vector cent compressive considered constant crack decrease determined diameter dislocation line ductile edge dislocation effect elastic elongation equation factor fatigue limit fatigue properties flow curve fracture stress given grain boundaries hardness increase indentation internal friction lattice load martensite material maximum measure Metals Park modulus notch number of cycles occurs orientation particles pile-up plastic deformation principal stresses Proc produced quenched ratio recrystallization reduction of area region residual stresses resolved shear stress screw dislocations shear stress shown shows single crystals slip direction slip lines slip plane slip system Society for Metals solid solution solute atoms specimen stacking fault steel strain energy strain hardening strain rate stress concentration stress-strain curve structure surface tensile strength tensile stress tension theory tion torsion Trans twins vacancies yield point yield strength yield stress