Method of making powders by electro-discharge machining in a cry

Details Method of making powders by electro-discharge machining in a cry Method of making powders by electro-discharge machining in a cry

1986-10-22

1988-03-15

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

204164, 219 69D, B23H 100, B23H 108

Patent

active

047315156

ABSTRACT:
Powders, and particularly metallic powders, are produced by electro-discharge machining of electrically conductive electrodes made of the desired materials in a cryogenic dielectric. When a sufficient quantity of powder has been produced, the cryogenic dielectric is allowed to evaporate, leaving the powders available for recovery. Powders formed by this process have unique microstructures, and thus unique properties, as a result of rapid cooling in the cryogenic medium. By using an inert cryogenic dielectric, such as argon, powders uncontaminated by the dielectric are produced.

REFERENCES:
patent: 2427588 (1947-09-01), Burnett
patent: 3553415 (1971-01-01), Girard
patent: 4416751 (1983-11-01), Berkowitz et al.
patent: 4488031 (1984-12-01), Roberts
patent: 4490601 (1984-12-01), Yokoyama
patent: 4491714 (1985-01-01), Inoue
Article entitled "Initiation of ZrC Dendritic Growth on the Surface of Spark Machined Zirconium," by J. D. Ayers, Metallurgical Transactions A, vol. 14A, Jan. 1983, pp. 5-10.
Article entitled "Formation of Metal Carbide Powder by Spark Machining of Reactive Metals," by J. D. Ayers and Kathy Moore, Metallurgical Transactions A, vol. 15A, Jun. 1984, pp. 1117-1127.

Affiliated with

Also associated with

Rating

Method of making powders by electro-discharge machining in a cry does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making powders by electro-discharge machining in a cry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making powders by electro-discharge machining in a cry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1927680