STUDY ON ARC LIGHT SENSING OF KEYHOLE BEHAVIOR IN PLASMA ARC WELDING OF STAINLESS STEEL

›› 1999, Vol. 35 ›› Issue (6): 48-51.

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STUDY ON ARC LIGHT SENSING OF KEYHOLE BEHAVIOR IN PLASMA ARC WELDING OF STAINLESS STEEL

Dong Chunlin;Wu Lin;Zhu Yifeng;Zhang Hui;Shao Yichen

Harbin Institute of Technology Beijing Aeronautical Manufacturing Technology Research Institute

Published:1999-11-01

Abstract

Abstract: The relationship between the keyhole behavior and arc light emission flux is studied by spectroscopic method in plasma arc welding of stainless steel. It is found that there are salient changes similar to negative pulse in arc light radiant intensity signal with the characteristic changes of keyhole behaviour. Also the above signal which is of particular advantage for estimating the keyhole formation or closure can be improved by the means of detecting sensitive spectral line intensity.

Key words: Arc light sensing, Keyhole, Plasma arc welding, Spectrum

CLC Number:

TG456.2

Dong Chunlin;Wu Lin;Zhu Yifeng;Zhang Hui;Shao Yichen. STUDY ON ARC LIGHT SENSING OF KEYHOLE BEHAVIOR IN PLASMA ARC WELDING OF STAINLESS STEEL[J]. , 1999, 35(6): 48-51.

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STUDY ON ARC LIGHT SENSING OF KEYHOLE BEHAVIOR IN PLASMA ARC WELDING OF STAINLESS STEEL

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