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

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2001, Vol. 18 ›› Issue (6): 544-548.

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

SUN Jun-sheng^1,2, WU Chuan-song²

1. Harbin Institute of Technology, Harbin 150001, P R China;
2. Shandong University of Technology, Jinan 250061, P R China

Received:2000-03-15 Online:2001-11-25 Published:2001-11-25

Abstract

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.

Key words: weldpool surface shape, distribution of heat content of droplet, mathematical model

CLC Number:

TC44

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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