| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a powder metal overlay nozzle which is coaxially mounted on a laser machining head to irradiate laser beams to a machining part and discharge powder material to a laser beam irradiation part of the machining part, and capable of uniformly discharging powder metal along a circumferential edge of a discharge port at a nozzle tip even when the axis thereof is inclined to the vertical direction. <P>SOLUTION: The coaxial powder metal overlay nozzle which is coaxially mounted on a laser beam machining head to irradiate laser beams to a machining part and discharge powder material to a laser beam irradiation part of the machining part comprises a body part having an annular powder metal filling space to be filled with powder metal therein, and a nozzle part having a plurality of discharge passages to be connected to the body part, communicating with the powder metal filling space, and opened in a discharge port to discharge the powder metal. The powder metal filling space is divided into filling areas corresponding to each of a plurality of feed passages to feed powder metal which are opened in the body part and opened in the powder metal filling space. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
