Effect of Laser Power on the Cladding Temperature Field and the Heat Affected Zone

钢铁研究学报(英文版), 2011, 18(1): 73-78.

^1, , ^2, , ^3, , ^4,

1.College of Zhijiang,Zhejiang University of Technology,Hangzhou 310024,Zhejiang,China;Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education,Zhejiang University of Technology,Hangzhou 310012,Zhejiang,China

2.Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou 310012, Zhejiang, China

3.College of Zhijiang,Zhejiang University of Technology,Hangzhou 310024,Zhejiang,China;Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education,Zhejiang University of Technology,Hangzhou 310012,Zhejiang,China

4.Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou 310012, Zhejiang, China

基金项目: Fund of Office of Science and Technology of Zhejiang Province of China(2008C31041)

Effect of Laser Power on the Cladding Temperature Field and the Heat Affected Zone

LUO Fang ^1, , YAO Jian-hua ^2, , HU Xia-xia ^3, , CHAN Guo-zhong ^4,

1.College of Zhijiang,Zhejiang University of Technology,Hangzhou 310024,Zhejiang,China;Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education,Zhejiang University of Technology,Hangzhou 310012,Zhejiang,China

2.Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou 310012, Zhejiang, China

3.College of Zhijiang,Zhejiang University of Technology,Hangzhou 310024,Zhejiang,China;Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education,Zhejiang University of Technology,Hangzhou 310012,Zhejiang,China

4.Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou 310012, Zhejiang, China

Keywords： laser power

H13 powder is cladded on steel P20 (base) by continuous CO2 laser, and the influence of technological parameters such as the laser power is analyzed. The 3-D model of synchronous powder feeding is built under Gauss heat source. The simulative results in the heat affected zone are compared with the experimental ones, and the average errors of width and depth are 15 % and 4.5 %, respectively. It is found that the simulative results provide basic data for investigating of laser cladding further.

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