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电子束改性技术应用于回转体零件的工艺试验研究 预览

Process Experimental Study of Electron Beam Modification Technology Applied to Rotary Parts
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摘要 针对回转体零件进行电子束表面改性处理时,需要克服电子束圆形焦斑能量分布不均匀和直线飞行可达性差的局限,利用电磁扫描控制原理设计出的特征束斑波形,在TC4钛合金材料表面进行了试验,验证了通用电子束焦斑采用波形扫描可以获得能量均匀分布的表面加热效果;利用电磁偏转方式研制了电子束运动轨迹控制装置,通过对回转体样件进行全表面处理试验,验证了回转体内外表面全方位的电子束加工可达性和可行性,突破了电子束无法进行内表面处理的局限.以上试验结果表明,利用电子束对旋转曲面进行表面改性应用是可行的. The energy distribution of circle beam spot was uneven,and the trajectory of beam after leaving the electron gun was a straight line,all of these are defects when the electron beam was used for the modification treatment of the surface for rotary parts.Based on the principle of electromagnetic scanning,this paper designed a special beam spot waveform,which energy distribution is uniform,and the result of TC4 titanium alloy surface modification proved this.Controlled the electron beam trajectory by electromagnetic deflection equipment,the test on rotary surface modification showed that: by controling the trajectory of electron beam to modify the whole surface of rotary parts was feasible.All the above test results proved that,the electron beam can be used to modify variety of surfaces,and can get uniform treatment layer.
作者 张永和 何俊 王世伟 Zhang Yonghe He Jun Wang Shiwei(Science and Technology on Surface Engineering Laboratory,Lanzhou Institute of Physics,Lanzhou 730000)
出处 《航天制造技术》 2013年第2期共4页 Aerospace Manufacturing Technoligy
关键词 电子束 改性 电磁偏转 回转体 可行性 electron beam surface modification electromagnetic deflection rotary parts feasibility
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