By W. Johnson (auth.), John J. Burke, Volker Weiss (eds.)
The military fabrics and Mechanics learn heart has con ducted the Sagamore military fabrics examine convention in coop eration with the fabrics technology workforce of the dep. of Chemical Engineering and fabrics technology of Syracuse college due to the fact that 1954. the aim of the convention has been to assemble to gether scientists and engineers from educational associations, in dustry and govt who're uniquely certified to discover extensive a subject matter of significance to the military, the dept of protection and the medical group. This quantity, Advances in Deformation Processing, addresses the components of Analytical Advances, Workability, Processing to Optimize homes, complex purposes - fabrics, and complex purposes - tactics. The devoted tips of Mr. Joseph Bernier of the military fabrics and Mechanics study heart through the phases of the convention making plans and eventually the booklet of the Sagamore convention complaints is deeply favored. The help of Helen Brown DeMascio of Syracuse collage in p- paring the ultimate manuscript is stated. the continuing energetic curiosity and aid of those meetings by means of Dr. A. E. Gorum, Director of the military fabrics and Mechanics learn middle, is liked. Syracuse collage Syracuse, ny The Editors vii Contents consultation I creation A. E. Gorum, Moderator Continuum Mechanics and Deformation Processing 1.
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Experimental setup for explosive hydrodynamic extrusion. 35 CONTINUUM MECHANICS AND DEFORMATION PROCESSING ( ~ \\ _ \\4 SECONDARY DIE ASSEMBLY PRODUCT CROSS-SECTION AREA DIE AREA VESSEL BILLE T BILLET AREA Figure l7(b). t Exploded view of Hydrospin die assembly. cylinder by a low explosive charge of two pounds of black gunpowder; aluminum billets of 1 3/4-inch diameter at a reduction of about 80 percent at 30,000 feet/min have been adiabatically extruded [50 J . A fascinating new concept associated with hydrostatic extrusion is that by Green called "Hydrospin" [51J.
F. Massey to B. & S. Massey Ltd. 50. Johnson, W. , "A Tool for Hydrodynamic Extrusion", Proc. Inst. Mech. , 182, Pt. 3C (1967-68), 9-10. 51. , " 'Hydrospin' - A New Concept of Extrusion", J. Inst. Metals, 99 (1971), 76-80. 52. , "Analysis for Roll Force and Torque in Ring Rolling with Some Supporting Experiments", Int. J. Mech. , 15 (1973), 873-93. 53. , "Slip-Line Field and Discontinuous Velocity Solutions for Some Metal Forming Processes. Part I. 4 (196162), 180-85, "Part 2. 4 (1961-62), 185-88 and "Part 3.
An impressive example is shown in Figure 14 of a curved wing panel 20 feet long by 6 feet wide. Peening only on one side can be made to give accurate forming as well as enhanced fatigue properties. 1 inch diameter, impinges on the workpiece at about 200 feet/sec. It may be asked to what extent this is a high-rate forming process. Interestingly, as an impact process, it is related to the study of bouncing from solid surfaces and ricochet from fluid surfaces. Sheet Metal Forming This subject comprises a large fraction of the subject of metal forming.
Advances in Deformation Processing by W. Johnson (auth.), John J. Burke, Volker Weiss (eds.)