Temperature controlled cathode heating in electron beam welding machine

Authors
Horacek, M Dupak, J
Citation
M. Horacek et J. Dupak, Temperature controlled cathode heating in electron beam welding machine, VACUUM, 62(2-3), 2001, pp. 165-169
Citations number
3
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
VACUUM
ISSN journal
0042207X → ACNP
Volume
62
Issue
2-3
Year of publication
2001
Pages
165 - 169
Database
ISI
SICI code
0042-207X(20010615)62:2-3<165:TCCHIE>2.0.ZU;2-I
Abstract
We describe in out paper how the lifetime of the directly heated tungsten c athode in electron beam welding machine can be substantially extended by au tomatic stabilisation of its temperature measured by its luminance. Further we show that the end of the life (the break) of the cathode can be predict ed, giving the operating personnel the chance to avoid unwanted effects of its unexpected break during the welding process. (C) 2001 Elsevier Science Ltd. All rights reserved.