Method for fabricating nonmetallic slices by using laser

Abstract

A method for machining on non-metal sheet by laser includes such steps as preparing a metallic mask with carved pattern, putting the metallic mask on the non-metal sheet to be machined, and using laser beam to scan on the mask for etching on the non-metal sheet to generate the needed pattern. Its apparatus is also disclosed.

Description

technical field [0001] The invention relates to the technical field of applying laser to process workpieces, in particular to a method for processing the surface of non-metallic sheets such as wood veneer, bamboo veneer, acrylic and the like. Background technique [0002] At present, the laser galvanometer marking machine is a known processing equipment. Its working principle is to use low-power laser dot matrix scanning to generate a certain high temperature, and carbonize or burn the surface of non-metallic materials to achieve the purpose of printing marks and markings. As a result, its application to non-metallic marking processing is a relatively mature technology, especially widely used in the etching and printing of numbers and symbols on the chip surface. On the other hand, since the laser galvanometer marking machine directly acts on the surface of the material, its processing speed is fast and its efficiency is high. A better way to texture. However, in the tradi...

AI Technical Summary

Problems solved by technology

However, in the traditional processing method, the laser directly acts on the surface of the material. Because the laser spot is large (about 0.2-1.0mm), and the spot will produce a certain heat-affected zone when the thin film is ablated, the existence of the heat-affected zone will lead to etching and ablation. The edges and outlines of patterns, textures diverge and become blurred

This defect is especially obvious when processing fine patterns, sometimes overlapping or even deformation occurs, which seriously affects the quality and accuracy of processing

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