Process and device for producing compressed mouldings from loose or sintered metal powder
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United States of America Patent
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Jul 8, 1986
Grant Date -
N/A
app pub date -
Nov 26, 1984
filing date -
Nov 30, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hermetically sealed capsule (10) containing degased metal powder (11) is embedded in a soft metal flow die (20). Subsequently the flow die (20) is compressed in a cavity block, thereby compressing the metal powder (11) by the hydrostatic pressure of the flow die and simultaneously shaping the said powder. This results in the reforming of the structure right down to the interior of the particles with compression of up to 100%. The shaping process can be aided by moulding dies (17, 18) embedded in the flow die (10) around the capsule (10) at a distance from each other and, when closed, forming a cavity, the shape of which deviates from that of the original shape of the capsule (10). The capsule (10) containing the metal powder is formed during closure of the moulding cavity.
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