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RISA Comparison of the Frictional Losses in Hydrostatic and Conventional Extrusion Processes With Hydrodynamic Lubrication
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental evidence indicates that billet die friction is higher in conventional extrusion than in hydrostatic extrusion. Simple hydrodynamic lubrication theory is used to show that this may ...
An Isoviscous Model for the Hydrodynamic Lubrication of Plane Strain Forging Processes With Flat Dies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Transient isoviscous hydrodynamic theory is used to investigate the lubrication of plane strain forging processes with flat dies. It is shown that during yielding a film which decreases from a ...
Discussion: “Durability of Graphite Films in Plastic Deformation” (Schey, J. A., and Lonn, A. H., 1975, ASME J. Lubr. Technol., 97, pp. 289–294)
Publisher: The American Society of Mechanical Engineers (ASME)
Discussion: “Hydrostatic Extrusion With Controlled Follower Block Clearance” (Kulkarni, K. M., and Schey, J. A., 1975, ASME J. Lubr. Technol., 97, pp. 25–31)
Publisher: The American Society of Mechanical Engineers (ASME)
Discussion: “A Hydrodynamic Lubrication Theory for Strip Rolling Including Thermal Effects” (Dow, T. A., Kannel, J. W., and Bupara, S. S., 1975, ASME J. Lubr. Technol., 97, pp. 4–12)
Publisher: The American Society of Mechanical Engineers (ASME)
Discussion: “Theoretical and Experimental Study of the Glass Lubricated Extrusion Process” (Baqué, P., Pantin, J., and Jacob, G., 1975, ASME J. Lubr. Technol., 97, pp. 18–23)
Publisher: The American Society of Mechanical Engineers (ASME)
Lubrication by a Melting Solid
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Theoretical models for a slider bearing which is lubricated by one of its surfaces melting are developed. Melting is assumed to be caused by frictional heating. Two cases are considered. In ...
Workpiece Surface Roughening in a Hydrodynamically Lubricated Metal Forming Process
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A mathematical model for the roughening of the workpiece in a hydrodynamically lubricated metal forming process is developed. Roughening is assumed to result from local variations in the workpiece ...
The Film Thickness Variation in the Work Zone of Hydrodynamically Lubricated Continuous Deformation Processes
Publisher: The American Society of Mechanical Engineers (ASME)
Discussion: “Isothermal Hydrodynamic Lubrication in Hydrostatic Extrusion of a Work-Hardening Material” (Thiruvarudchelvan, S., 1979, ASME J. Lubr. Technol., 101, p. 386)
Publisher: The American Society of Mechanical Engineers (ASME)