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本文分析了电子束焊接装置用电子光学系统束斑形成的物理因素,通过分析及大量计算得到了电子束会聚半角、光路尺寸和透镜参量的选择依据、计算方法及其变化对束斑尺寸影响的规律.本文所述及的分析及计算方法可供电子束焊接装置用电子光学系统设计时参考.
In this paper, the physical factors of beam spot formation in E-beam system of electron beam welding are analyzed. The selection criteria of beam half angle, beam path size and lens parameters are analyzed and calculated in large quantities. The calculation methods and their influence on beam spot size Regularity.The analysis and calculation method mentioned in this paper can be used as reference for design of electronic optical system of electron beam welding device.