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首页> 外文期刊>Russian electrical engineering >Control of Electron-Beam Surfacing-Process Parameters Using Current Signals of the Wire and Article
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Control of Electron-Beam Surfacing-Process Parameters Using Current Signals of the Wire and Article

机译：利用电线和物品的电流信号控制电子束堆焊工艺参数

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摘要

This paper presents a method of control of the metal-transfer mode during electron-beam surfacing with a filler-wire feed based on simultaneous recording of the potential of the wire and article connected with the apparatus frame through the resistors. The main metal-transfer modes are specified that are observed with a change of the energy-input rate. The importance of the solved problem for additive technologies is shown. A scheme of experimental investigations carried out at the ELA-15I apparatus is given, and the obtained oscillograms are presented. The relation of the characteristics of the registered signals with the operation modes of the equipment and transfer parameters is shown. It is noted that, with a change of only the filler-wire feed rate, a changeover from drop metal transfer to the scattering mode can be triggered. The possibility of detecting the mode of appearance of the shot metal, as well as emergency modes related with stopping the filler-wire feed or excessive increase of its feed rate, is substantiated. The influence of the plasma processes on the registered signals in the developed scheme is analyzed, and it is also shown that, to reduce the influence of these processes, it is necessary to decrease the resistance of the measuring circuit. Photographs of the process corresponding to the certain oscillogram intervals are given.
机译：本文提出了一种基于填充电阻丝进料的电子束堆焊过程中的金属传输模式的控制方法，该方法基于同时记录通过电阻器与设备框架相连的导线和物品的电势。指定了主要的金属传输模式，这些模式随能量输入速率的变化而观察到。显示了已解决问题对添加剂技术的重要性。给出了在ELA-15I仪器上进行的实验研究的方案，并给出了所获得的波形图。显示了注册信号的特性与设备的操作模式和传输参数之间的关系。注意，仅改变填充焊丝的进料速度，就可以触发从液滴金属转移到散射模式的转换。证实了检测到金属渣的外观模式以及与停止填充焊丝进给或过度提高其进给速度有关的紧急模式的可能性。在开发的方案中，分析了等离子体处理对配准信号的影响，并且还表明，为了减少这些处理的影响，有必要减小测量电路的电阻。给出了与某些示波器间隔相对应的过程照片。

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