| 激光焊接等离子体简化电流模型及应用 |
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| 引用本文： | 王成,陈武柱,彭云,包刚,田志凌.激光焊接等离子体简化电流模型及应用[J].清华大学学报(自然科学版),2002,42(4):488-490. |
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| 作者姓名： | 王成 陈武柱 彭云 包刚 田志凌 |
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| 作者单位： | 1. 清华大学机械工程系,北京,100084
2. 北京钢铁研究总院,北京,100081 |
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| 基金项目： | 国家“九七三”基础研究项目，清华大学“九八五”基金项目 ( 0 12 -10 10 5 0 ) |
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| 摘 要： | 等离子体控制是解决高功率激光焊接的关键技术。为完善对等离子体控制技术 ,对焊接过程中等离子体电流的形成进行了理论分析 ,并将等离子体导电过程简化等效为一个具有内阻的电源模型。采用 3 k W CO2 激光器在不同激光焊接规范下 ,依据测量得到的等离子体电流计算得到了等效电源电压和等效内阻。最后依据此模型成功实现了辅助磁场对等离子体的控制
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| 关 键 词： | 激光焊接 等离子体控制 电流模型 辅助磁场 |
| 文章编号： | 1000-0054(2002)04-0488-03 |
| 修稿时间： | 2001年3月28日 |
Simple plasma current model and its application in laser beam welding |
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| WANG Cheng ,CHEN Wuzhu ,PENG Yun ,BAO Gang ,TIAN Zhiling.Simple plasma current model and its application in laser beam welding[J].Journal of Tsinghua University(Science and Technology),2002,42(4):488-490. |
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| Authors: | WANG Cheng CHEN Wuzhu PENG Yun BAO Gang TIAN Zhiling |
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| Institution: | WANG Cheng 1,CHEN Wuzhu 1,PENG Yun 1,BAO Gang 1,TIAN Zhiling 2 |
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| Abstract: | Plasma control is one of the key techniques for high power laser welding. The plasma current in laser beam welding was analyzed and a model that takes plasma as a power source with resistance was developed. The plasma current in a 3 kW CO 2 laser welding beam was measured experimentally to calculate the equivalent power source voltage and source resistance for different laser welding parameters. The plasma can be controlled by a magnetic field according to the model. |
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| Keywords: | laser beam welding plasma control current model auxiliary electric magnetic fields |
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