Abstract
The welding mechanism of laser-TIG hybrid welding process is analyzed. With the variation of arc current, the welding process is divided into two patterns: deep-penetration welding and heat conductive welding. The heat flow model of hybrid welding is presented. As to deep-penetration welding, the heat source includes a surface heat flux and a volume heat flux. The heat source of heat conductive welding is composed of two Gaussian distribute surface heat sources. With this heat source model, a temperature field is calculated. The finite element code MARC is employed for this purpose. The calculation results show a good agreement with the experimental data.
| Original language | English |
|---|---|
| Pages (from-to) | 511-514 |
| Number of pages | 4 |
| Journal | Chinese Journal of Mechanical Engineering (English Edition) |
| Volume | 17 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 2004 |
Keywords
- Deep-penetration welding
- Heat conductive welding
- Heat source model
- Laser-TIG hybrid welding
- Temperature field
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