Patent
Method of making beryllium shapes from powder metal
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TLDR
In this paper, a method of making beryllium or beryellium alloy shapes from powder metal by first pressing the shape either by isostatic pressing or conventional mechanical compacting methods at room temperature to 60 percent to 95 percent of theoretical density at a pressure of between 30,000 and 90,000 psi or above and subsequently pressing and heating to final size and density.Abstract:
A method of making beryllium or beryllium alloy shapes from powder metal by first pressing the beryllium or beryllium alloy shape either by isostatic pressing or conventional mechanical compacting methods at room temperature to 60 percent to 95 percent of theoretical density at a pressure of between 30,000 and 90,000 psi or above and subsequently pressing and heating to final size and density at temperatures between 1,400 DEG F and 2,150 DEG F (preferably 1,550 DEG F to 1,900 DEG F) and pressures of from 100 to 10,000 psi effective pressure on the compacted powder, preferably at 100 to 2,500 psi The second pressing of the shape is done with mechanical pressure simultaneously with the application of heat under vacuum or inert environmentread more
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Donald Webster,Aldo E. Vidoz +1 more
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