Process for making composite mechanical parts by sintering

Details Process for making composite mechanical parts by sintering Process for making composite mechanical parts by sintering

1983-04-28

1985-03-05

Padgett, Ben R.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 5, 419 48, B22F 314

Patent

active

045030090

ABSTRACT:
A process for making a mechanical part of a complicated profile by preparing a compact having a projection or shaft (hereinafter called the inner part) and a compact having relative recess or opening (hereinafter called the outer part) by the compression of iron base metal powders, and by fitting the inner part into the outer part followed by sintering. This process is characterized in that the said inner part contains carbon as an essential component in an amount that is larger than the carbon content of the said outer part by 0.2% by weight or higher.

REFERENCES:
patent: 3672882 (1972-06-01), Sagmuller et al.
patent: 4236923 (1980-12-01), Takahashi et al.
Goetzel, "Treatise on Powder Metallurgy" vol. II, (1950), pp. 362-363.

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