Process for producing dense machinable alloys from particulate s

Details Process for producing dense machinable alloys from particulate s Process for producing dense machinable alloys from particulate s

1976-03-16

1978-03-07

Combs, E. M.

Metal working

Method of mechanical manufacture

Scrap recovering or utilizing

294205, 72253R, B21C 2304

Patent

active

040771083

ABSTRACT:
The invention relates to a process for obtaining steels having improved machinability. This process provides for the upgrading of divided metallurgical products, which are consolidated without fusion, with incorporation of a dispersed phase.
This process is used in particular for scrap consisting of sheet metal or turnings, which is mixed in the desired proportion with an additive such as for example sulfur or lead. After it has been compressed the mixture is extruded in a press in the form of bars and the like.
This process is particularly suitable for producing stainless steels containing sulfur or lead. The lead stainless steels thus prepared have an excellent corrosion resistance, in addition to their machinability characteristics.

REFERENCES:
patent: 3626578 (1971-12-01), Price et al.
patent: 3629929 (1971-12-01), Wessel
patent: 3774289 (1973-11-01), Cacace et al.
patent: 3810756 (1974-05-01), Koehler
patent: 3864809 (1975-02-01), Donachie
patent: 3922769 (1975-12-01), Brenan

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