Water jet assisted laser induced plasma processing method and device

• Main Authors: HUANG PING, ZHOU JIA, LONG YUHONG, ZHAO ZHEN, LIN ZE, ZHOU LIAO, ZHANG GUANGHUI, HUANG YUXING
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2022
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention provides a water jet assisted laser-induced plasma processing method and device. The device comprises a light path system, a coupling unit, a workbench unit and a hydraulic system which are arranged in sequence. The light path system emits a laser beam with high power density, the laser beam is focused and enters the coupling unit, the hydraulic system provides stable high-pressure water flow with stepless pressure regulation to the coupling unit, and a nozzle of the coupling unit generates stable high-speed water jet. The high-power-density laser beam is focused in the water jet, plasma is generated in a focus area, and the surface of a workpiece is machined. The method has the advantages that a static water layer does not need to be generated on the surface of the workpiece, the situation that the focusing stability is affected by shaking of the water layer in the machining process is avoided, cavitation bubbles and slag generated in the machining process can be removed in time through high-sp