A kind of jet cutting method and system thereof

Abstract

The invention discloses a jet cutting method and its system. The jet cutting method comprises the following steps: (1) clamping a workpiece and making the surface to be processed of the workpiece vertical; (2) irradiating a laser beam onto the A heating point is formed on the processing surface, and the jet beam is impacted on the surface to be processed to form a cutting point, the cutting point is located at the lower part of the heating point, and both the cutting point and the heating point are located on the processing track; (3) The heating point and the cutting point move upwards along the processing track relative to the surface to be processed to process the workpiece; after the workpiece is clamped, the present invention makes the surface to be processed of the workpiece become In the vertical state, the medium of the jet beam flows to the ground direction after processing by gravity, which can reduce the cooling of the surface to be processed, improve the softening effect of the laser on the surface to be processed, and thus improve the processing efficiency.

Description

technical field [0001] The invention relates to the technical field of jet cutting, in particular to a jet cutting method and a system thereof. Background technique [0002] High-pressure water jet cutting technology is a technology that uses a certain high-pressure pure water or slurry with cutting abrasives to inject a liquid column with high-density impact through the cutting nozzle, and directly rushes to the object to be processed for cutting. Compared with traditional mechanical processing technology, high-pressure water jet has the advantages of wide cutting range, good cutting quality, no thermal processing, environmental protection, and no need to change tools. Compared with traditional tools, high-pressure water jet equipment can increase the processing speed by dozens of times when cutting high-hardness materials such as ceramics, but its tool feed speed is still slow, and the processing efficiency is still low, which cannot meet the requirements for mass producti...

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Problems solved by technology

[0004] The Chinese patent application publication number CN108326554A discloses a laser water jet composite processing system. The jet nozzle emits a water jet, and the water jet falls on the processing path of the workpiece surface. The laser beam generated by the laser device 1 is converged by multiple total reflections. It is a linear beam output, which directly acts on the processing path of the surface of the workpiece in water, forming a laser water jet composite processing system. However, in this scheme, the surface to be processed of the workpiece is level with the ground, which will cause the water jet to work in actual processing. The medium inevitably diffuses to the area that has been heated by the laser, causing the cooling of the area to be processed and weakening the proper softening effect

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