Apparatus for heat operating a workpiece with the aid of an optical projection of a radiation source

摘要: An apparatus for the heating, melting, welding, brazing, cutting and like of a workpiece with aid optical projection radiation source. The source is disposed within focusing chamber at one focal point thereof therefrom exits through outlet to impinge on second external working point. A pressurized gas, which may be cooling protective gas or reactive introduced into least portion chamber. discharges prevents entry damaging vapors develop during use apparatus. divided by permeable partition pair compartments; first containing having outlet. compartment exit an aperture in discharge Alternatively whereby both gases, either mixed unmixed are discharged In other embodiments, sealed gases directly compartment. include narrow tube substantially coaxial imaginary line interconnecting foci directing concentrated stream toward workpiece. fiber optic rod mounted provide removed from focus. have bore passage