| 磁脉冲焊接的数学模型 |
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| 引用本文： | 陈树君,刘恺洛,夏雨,白立来,卢振洋.磁脉冲焊接的数学模型[J].北京工业大学学报,2012,38(12). |
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| 作者姓名： | 陈树君 刘恺洛 夏雨 白立来 卢振洋 |
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| 作者单位： | 北京工业大学机械工程与应用电子技术学院,北京,100124 |
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| 基金项目： | 教育部博士学科点专项科研基金资助项目，北京市教委科技发展计划资助项目 |
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| 摘 要： | 从飞板冲击的动力学方程出发,建立了磁脉冲焊接过程的动力学模型,推导了接触点产生射流的临界速度与被焊工件的密度、屈服强度、几何形状与装配间隙的关系,其中充电电压作为可调工艺参数.采用所建立的模型计算出焊接铝合金1050与镁合金AZ31、铝合金5A03和铝合金5A06所需的充电电压,成功实现了上述2种异种材料的磁脉冲焊接,验证了所建立模型的正确性.
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| 关 键 词： | 磁脉冲焊接 动力学模型 射流、接触点速度 |
The Kinematics Mathematical Model of Magnetic Pulse Welding |
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| Abstract: | The kinetics model of the magnetic pulse welding was established based on the impact of the flying plate.The jet velocity of the point of contact depended on the material density,the material yield strength,geometry,assembly gap and the discharge current.In actual operation,the charging voltage could be selected as adjustable process parameters.In order to achieve the welding of Aluminum alloy 1050 with magnesium alloy AZ31 and aluminum alloy 5A03 with aluminum alloy 5A06,the required charging voltage was calculated by using the established model.Good metallurgical bond was confirmed by metallographic examination and the validity of the model was demonstrated. |
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| Keywords: | magnetic pulse welding kinematics model jet speed of the contact point |
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