Isothermal Extrusion of Heavy Metals |
Contents
Index of the most important symbols | 1 |
Experimental Investigations | 8 |
Theoretical Background | 37 |
Copyright | |
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16 Billet length alloy Aluminium analysis approximately billet and container Billet length cm billet profile calculated from Lange's cam discs change in hardness cm² Comparison between hardness control valve cooling zone exit curve decrease deformation zone diameter direct extrusion displacement equation equilibrium diagram experiments with cooling extrapolated extrusion load extrusion speed extrusion temperature flow rate flow stress friction gradient grain growth hardness and exit Hardness HV Hardness increase heat balance heat of deformation heat transfer heat transfer coefficient heavy metal increase in hardness increasing extrusion initial billet temperature initial hardness Lange Lange's theory length cm Fig linear maximum measured mechanical properties Metallk obtained plotted ram speed relationship sec-¹ shear load shear zone shown in Fig sion solidus speed of 0,9 strain-rate Strangpressen structure temperature and speed temperature increase temperature profile tensile strength thermal conductivity thermal diffusivity thermocouples values zone exit temperature ΟΙΛΗ ос