HEAT SOURCE MODEL FOR TWIN WIRE WELDING

Abstract

Abstract: The temperature field of twin wire welding is calculated by using classical double ellipsoid heat source model. After comparing the simulating results with the measuring results it shows that when applying this model to the numerical simulation of twin wire welding’s temperature field there exist big errors. By analyzing the arc shape and droplet transition path of twin wire welding, the phenomena that front arc and rear arc of twin wire welding deflect to the middle of the two wires is found. This phenomenon explains the reason of simulating results’ errors. Based on this phenomenon the double ellipsoid heat source model is amended and the heat source model of twin wire welding is presented. This model’s calculating results anastomose well with the measuring results.

Key words: Heat source model, Temperature field, Twin wire welding

CLC Number:

TG44

Meng Qingguo;Fang Hongyuan;Xu Wenli;Ji Shude. HEAT SOURCE MODEL FOR TWIN WIRE WELDING[J]. , 2005, 41(4): 110-113.

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HEAT SOURCE MODEL FOR TWIN WIRE WELDING

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