Patent ID: 6083087
Filing Date: 2000-07-04
Classification: B24C,Y02P

Abstract:
A powder beam working system for dispersing fine particles in high-pressure gas and projecting a resultant solid-gas two-phase flow on a surface of an object to be worked so as to work the surface of the object to be worked, said powder beam working system comprising:storing means for temporarily storing said fine particles;a dispersing chamber for forming a portion of a flow path for said high-pressure gas;sending means for sending fine particles stored in said storing means into said dispersing chamber in their solid phase state at a predetermined rate to form a first stream of particles;ejecting means for combining the first stream with a second portion of the flow path to form the solid-gas two-phase flow; andcontrol means for controlling an internal pressure of said storing means so as to be equal or almost equal to a pressure in said dispersing chamber.