Pressing metal powder into shapes

Details Pressing metal powder into shapes Pressing metal powder into shapes

1978-09-29

1983-06-28

Hall, James R.

Powder metallurgy processes

Forming articles by uniting randomly associated metal particles

Consolidation of powders

264112, 264113, 264120, D04H 120

Patent

active

043904882

ABSTRACT:
An annular die and a matingly provided annular punch cooperate for stepwise building-up a hollow; the punch has one or two channels to which powder is fed; the amount for each feed is limited so that the height of the powder compressed in each step is about 0.6 to 0.8 times the annular dimension of the product to be made.

REFERENCES:
patent: 4077109 (1978-03-01), Larson
patent: 4135286 (1979-01-01), Wright et al.
patent: 4170619 (1979-10-01), Fridrich

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