Evaluation Method of Usability of the Flux-cored Wire in CO2 Arc Welding

Abstract

Abstract: Metal transfer behaviors of the flux-cored wire in CO2 arc welding have a direct effect on usability of the flux-cored wire. These behaviors are indirectly showed in welding electric signals. Using the ANALYSATOR HANNOVER, welding electric parameters of the flux-cored wires in CO2 arc welding are measured and analyzed. Four characteristic information values closely correlated with usability of the flux-cored wire are extracted, such as the sum of probability density of big short-circuiting current, frequency of short-circuiting transfer, frequency of brief short circuit and the sum of brief short-circuiting time, and then method of principal component analysis is applied to determining evaluation index of usability of the flux-cored wire. Usability of the flux-cored wire is quantitatively evaluated. Thereby it offers a new method for scientifically evaluating usability of the flux-cored wire.

Key words: Evaluation method, Flux-cored wire, Metal transfer, Principal component analysis, Usability of the flux-cored wire

CLC Number:

TG42

WANG Yong;WANG Bao. Evaluation Method of Usability of the Flux-cored Wire in CO2 Arc Welding[J]. , 2008, 44(4): 234-238.

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Evaluation Method of Usability of the Flux-cored Wire in CO2 Arc Welding

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