process and device to generate a liquid jet, device to optimize the consistency of a liquid jet and liquid nozzle for this device

摘要

the process and method to generate a jet of liquid for processing the material and mouthpiece of liquid for this device this invention refers to a process and a device to generate a jet of liquid (5) that is appropriate to guide a laser beam (1o) included within it according to the principle of a wave guide, for the processing of a workpiece (3),and which has a liquid nozzle (1) to generate the liquid jet (5) and a gas outlet nozzle (23) disposed away from the liquid nozzle (1) which forms a gas flow (35) that surrounds the liquid jet (5) on the side face. between the liquid mouthpiece (1) and thegas outlet nozzle (23) is formed a gas retention space. The liquid jet (5) passes through the gas exit nozzle (23). The liquid jet has a preferably 60 or less diameter and the gas flow (35) has a diameter of 1 to 2 m m.