Plastic article or earthenware shaping or treating: apparatus – Means utilizing force from explosive or thermic composition
Patent
1985-06-27
1986-07-08
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Means utilizing force from explosive or thermic composition
425 78, B29C 700
Patent
active
045990603
ABSTRACT:
A die/target is disclosed for consolidation of a powder, especially an atomized rapidly solidified metal powder, to produce monoliths by the dynamic action of a shock wave, especially a shock wave produced by the detonation of an explosive charge. The die/target comprises a rectangular metal block having a square primary surface with four rectangular mold cavities formed therein to receive the powder. The cavities are located away from the geometrical center of the primary surface and are distributed around such center while also being located away from the geometrical diagonals of the primary surface to reduce the action of reflected waves so as to avoid tensile cracking of the monoliths. The primary surface is covered by a powder retention plate which is engaged by a flyer plate to transmit the shock wave to the primary surface and the powder. Spawl plates are adhesively mounted on other surfaces of the block to act as momentum traps so as to reduce reflected waves in the block.
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"Metallurgy of High Rate Consolidation I", J. of Metals, vol. 36, pp. 12-13, 22-23, Abstracts presented in 1984 Fall Meeting, AIME/TMS.
Flinn John E.
Korth Gary E.
Fisher Robert J.
Flint, Jr. J. Howard
Glenn Hugh W.
Hightower Judson R.
The United States of America as represented by the United States
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