S. Y. Yin
,
L. Feng
,
J. Z. Ding and S. J. Chan( 1) Beijing Polytechnic University
,
Beijing 100022
,
China 2) National Key Laboratory of Advanced Wdlding Production Technology
,
HIT
,
Harbin 150001
,
China)
金属学报(英文版)
Based on the theory of stability of the liquid metal under the action of surface tension,a physical mod- el is established for the mechanisms of the bead formation deferct' humping', which is generated during high - speed welding.A boundary function is introduced to correct the model,theoretical results got by the model correspond well with the experimental phenomena. A two - dimensional conducting model is adoopted in the simulation of the temperature field during high - speed welding.Finally, the factors acting upon the stability of liquid metal are analyzed.
关键词:
high - speed welding
,
null
,
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