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Accession Number:
AD0260972
Title:
A STUDY OF EXPLOSIVE FORMING SELECTED REFRACTORY METALS
Corporate Author:
PROPELLEX CHEMICAL DIV CHROMALLOY CORP EDWARDSVILLE ILL
Report Date:
1961-07-15
Abstract:
An investigation as initiated to optimize the strain rate conditions and transmission media for explosive forming of the refractor metals 1 Mo-12Ti, 2 W, 3 Nb alloy Cb-74, and 4 Nb alloy CT-2WZ. e ac aterial will be in the form of 6-x6-x0.040-in. sheets. Fifteen tests are planned for each of the 3 basic materials in a unidirectional-type trough die and 5 tests of each material in a multidirectional cup die. Both dies will be mo ified to accept springs for the draw-ring assembl and an attempt will be made to evaluate the effect of draw-ring pressure on the elongation and flow of the metals. RDX and 40 dynamite will be used for the explosive charges. A review will be made of the publications concerning explosiforming transfer media in order to select 2 mediums in addition to powdered alumina. The Mo-12Ti alloy will be processed at 1000 F, the Nb alloys at 800 to 100 F, and the W at 1000 F. Polar coordinate grids will be placed on each blank by the photo-resist method for elongation measurements. The metal between the grid lines will be etched to a depth of 0.0005 to 0.001 inch.
Pages:
0001
File Size:
0.00MB
