Process of making metal castings

Details Process of making metal castings Process of making metal castings

1995-06-07

1998-09-01

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

164 581, 419 37, 419 38, B21B 146

Patent

active

057993866

ABSTRACT:
A process for making metal castings, comprising the steps of
(a) preparing an alloy from at least two different metals;
(b) forming the alloy into a powder;
(c) optionally combining the powder with a lubricant and/or flux;
(d) pressing the powder into pellets;
(e) melting one or more of the pellets;
(f) casting the molten alloy into the mold;
(g) cooling the metal casting.
This process allows for the production of alloy castings even from high melting poorly soluble metals. The use of pellets containing a lubricant and/or flux is preferred. In addition the pellets may contain deoxidizers, grain refiners, and/or oxidizers. The process is especially suitable for the manufacture of dental, jewelry and precision castings.

REFERENCES:
patent: 3961663 (1976-06-01), Degois et al.
patent: 4323395 (1982-04-01), Li
patent: 5196898 (1993-03-01), Ter Maat et al.

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