Auxiliary laser repeating punching method and device for ceramics based on static solution

Abstract

The invention discloses an auxiliary laser repeating punching method for ceramics based on a static solution. The method comprises the steps that a fixing workpiece is soaked in a cooling solution ofa solution groove, the defocus amount of a laser to the to-be-processed workpiece is adjusted to 0, then a mist removal device and a laser emitter are started for primary punching, after primary punching, the defocus amount of the laser is adjusted to a negative value, secondary punching is conducted, and after secondary punching, the to-be-processed workpiece is taken out for cleaning. The invention further a laser repeating punching device. The device comprises a laser system, a mist removal fan, a machine tool working table, the solution groove, a workpiece clamp, a machine tool base and areflection mirror. According to the method and device, through the cooking and flushing effect of the static cooling solution and a laser repeating punching mode, processing cracks are reduced, the hole taper is lowered, the hole roundness is improved, and the effect of slag attachment and a recasting layer is reduced. Therefore, the punching quality is improved, the device is suitable for being transformed on the basis of existing equipment, simple in structure, easy to implement and low in cost, and the implementation method is simple.

Description

technical field [0001] The invention belongs to the field of laser processing, and in particular relates to a static solution-assisted laser repetitive drilling method and device for ceramics. Background technique [0002] Alumina ceramics is one of the most widely used ceramic materials in the world. It is the most widely used material in the fields of electronics and biology. However, the characteristics of poor thermal shock resistance and low fracture toughness of alumina ceramics make it suitable for traditional machinery. Processing is especially difficult. [0003] With the continuous development of science and technology, the application field and scale of laser drilling technology are becoming more and more extensive, but its processing technology still needs to be continuously improved. Therefore, relevant domestic researchers and institutions are committed to theoretical and practical research on laser drilling. Research. However, the existing laser drilling tec...

AI Technical Summary

Problems solved by technology

However, the existing laser drilling technology cannot be used well in the processing of non-metallic materials such as ceramics with poor ductility and low thermal conductivity. For example, when laser drilling non-metallic materials such as ceramics in air, the taper of the hole is relatively Large, and the thermal conductivity of non-metallic materials such as ceramics is small, the residual stress on the surface is large, and microscopic defects such as large taper, cracks, slag, and recasting layers are prone to occur, and the roundness of the inner hole is reduced, resulting in poor drilling quality.

Although there are also many auxiliary means in the existing methods to optimize the process parameters of laser drilling, such as: ultrasonic waves, low (high) pressure water jets, chemical reagents, dynamic aqueous solutions and other auxiliary means, some of them can be better solved. The above-mentioned problems have produced many new problems and requirements at the same time. For example, when using auxiliary means such as ultrasonic waves and low (high) pressure water jets, the required equipment requirements are too high and the cost increases, while using chemical reagents, dynamic aqueous solutions, etc. When using auxiliary means, it increases the cost of equipment transformation and the difficulty of actual operation, and will cause adverse effects on the environment

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