Composite machining method based on laser discretization, efficient milling and grinding and laser milling

Abstract

The invention discloses a composite machining method based on laser discretization, efficient milling and grinding and laser milling. The method includes the steps that a laser discretization technology is adopted, machining is conducted on the surface of a workpiece through lasers, a prefabricated microtexture is formed, and workpiece surface discretization is achieved; an efficient milling and grinding technology is adopted, and milling and grinding equipment is adopted for conducting rough machining on the workpiece obtained after the laser discretization technology; and a laser milling technology is adopted, and fine milling is conducted on the workpiece obtained after the efficient milling and grinding technology through lasers. By means of the composite machining method, the laser discretization technology, the efficient milling and grinding technology and the laser milling technology are combined, machinability of hardly-machined materials can be improved, efficient large-removing-rate machining is achieved, the roughness of a machined surface is improved, and regional machining can be conducted according to workpiece features. Due to multi-technology composite machining, the machining efficiency, the machining precision and the machining quality are greatly improved.

Description

technical field [0001] The invention relates to the technical field of composite processing of materials, in particular to a composite processing method based on laser discretization, high-efficiency milling and laser milling. Background technique [0002] Difficult-to-machine hard and brittle materials have broad application prospects in aerospace, energy, transportation and other fields, and are key functional materials in the aerospace field, such as ceramic matrix composites, silicon carbide ceramics, etc. The application of this type of material in the field of aero-engines has attracted more and more attention. Under the government-led IHPTET, UEET, ESPR, AMG and other aero-engine technology improvement plans, developed countries such as the United States and Japan have carried out relevant research on aero-engine ceramic matrix composite turbine components. Research and development work, and achieved breakthrough results. Research on ceramic matrix composites for aer...

AI Technical Summary

Problems solved by technology

At present, it is difficult to guarantee the machining geometric accuracy and surface integrity of hard and brittle materials with functional structural features, the material is easily damaged, and the processing efficiency is low.

There are the following problems in this field: high material hardness, high brittleness, severe tool wear, burrs, easy to pull out fibers, poor processing consistency, and difficult to improve efficiency during conventional mechanical / ultrasonic processing; The efficiency is difficult to guarantee, and the realization of high material removal rate processing is often at the expense of the loss of surface quality

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