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    • 38. 发明授权
    • Method of generating laser-radio beam
    • 产生激光无线电波束的方法
    • US3947654A
    • 1976-03-30
    • US531895
    • 1974-12-12
    • Thomas E. Fairbairn
    • Thomas E. Fairbairn
    • B05B7/22B23K26/14B23K27/00
    • B05B7/228B05B7/22B23K26/1423B23K26/144
    • A laser-radio frequency system for generating a high temperature beam and for directing and modulating the combined beam at a workpiece or target. The system includes a hollow circular electrode mounted within a circular nozzle and spaced apart from the nozzle to define an annular gap. A radio frequency generator having a hollow metal coil as its tank coil is connected to the nozzle and a pressurized inert gas is fed through the tank coil into the nozzle. When the generator is activated, a coherent R.F. electron stream is emitted from the electrode and the inert gas flows along the annular gap to sheath and focus the stream into an energy beam directed toward the workpiece. A laser generator provides a laser beam through the hollow portion of the electrode which is reflected and focused onto the workpiece; therefore an algebraic summation of both electromagnetic energies is obtained at the workpiece in the non-oxidizing atmosphere. The radio frequency tank coil may be connected to a source of powder for spraying a coating on the workpiece.
    • 一种用于产生高温光束并用于在工件或靶上引导和调制组合光束的激光射频系统。 该系统包括安装在圆形喷嘴内并与喷嘴间隔开以限定环形间隙的中空圆形电极。 将具有中空金属线圈作为其槽线圈的射频发生器连接到喷嘴,并且将加压的惰性气体通过箱体线圈供给到喷嘴中。 当发电机被激活时,一个相干的R.F. 从电极发射电子流,并且惰性气体沿着环形间隙流动到鞘并将流聚焦成指向工件的能量束。 激光发生器通过反射并聚焦在工件上的电极的中空部分提供激光束; 因此在非氧化性气氛中的工件处获得两种电磁能的代数求和。 无线电频率槽线圈可以连接到用于在工件上喷涂涂层的粉末源。