THE MATHEMATICAL MODEL OF WELDPOOL SURFACE SHAPE AND  DISTRIBUTION OF DROPLET HEAT CONTENT IN MIG WELDING

SUN Jun-sheng; WU Chuan-song

SUN Jun-sheng, WU Chuan-song. THE MATHEMATICAL MODEL OF WELDPOOL SURFACE SHAPE AND DISTRIBUTION OF DROPLET HEAT CONTENT IN MIG WELDING[J]. Chinese Journal of Computational Physics, 2001, 18(6): 544-548.

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THE MATHEMATICAL MODEL OF WELDPOOL SURFACE SHAPE AND DISTRIBUTION OF DROPLET HEAT CONTENT IN MIG WELDING

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Abstract

By considering the interactional physical process of droplet and weldpool, a mathematical model of weldpool surface deformation and a distribution model of droplet heat content inside weldpool are established. Numerical simulation technique is employed to analyze the correlation of welding parameters, distribution volume of droplet heat content and welding seam figuration. The experiments show that the simulation results are in agreement with the measured ones.

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THE MATHEMATICAL MODEL OF WELDPOOL SURFACE SHAPE AND DISTRIBUTION OF DROPLET HEAT CONTENT IN MIG WELDING

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