Phase and particle size composition of carbides formed during electric spark erosion machining of tungsten

Pulse repetition rates and pulse shapes have been studied in phase and particulate compositions obtained as electric spark erosion products. The experimental work was carried out at pulse frequencies (f)=1-440 kHz with rectangular and ridge shaped pulses, and the number of current bridges (n)=3-20....

Full description

Saved in:
Bibliographic Details
Published in:Soviet Powder Metallurgy and Metal Ceramics 1992-10, Vol.31 (10), p.870-873
Main Authors: Marusina, V. I., Iskhakova, G. A., Rakhimyanov, Kh. M.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Pulse repetition rates and pulse shapes have been studied in phase and particulate compositions obtained as electric spark erosion products. The experimental work was carried out at pulse frequencies (f)=1-440 kHz with rectangular and ridge shaped pulses, and the number of current bridges (n)=3-20. Maximum yields for tungsten monocarbide and the black form were noted when the pulse was ridged in shape and the number of current bridges was up to 10 and the pulse repetition rate was in excess of 100 kHz. The powder consists chiefly of spherical particles with a narrow size distribution range (0-7 mu m).
ISSN:0038-5735
1573-9066
DOI:10.1007/BF00797511