• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 2008, Vol. 44 ›› Issue (4): 234-238.

• Article • Previous Articles     Next Articles

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

WANG Yong;WANG Bao   

  1. Institute of Welding Materials, Taiyuan University of Technology Training Center of Welding Consumables Technology, North University of China
  • Published:2008-04-15

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: