Shimming laser-assisted milling machining device and method suitable for difficult-to-machine materials

Abstract

The invention provides a shimming laser-assisted milling machining device for difficult-to-machine materials, and relates to the technical field of laser-assisted machining. A machining system is mainly composed of a laser device, a shimming laser shaping system, a workbench, a machine tool spindle frame and a shaper clamping device. According to a machining method, on the basis of the existing short-pulse Gaussian laser device, Gaussian laser is converted into shimming laser through the laser shaping system, a shimming laser heat source is introduced in the milling machining process, the materials in a to-be-machined area are evenly heated, the hardness of the materials is reduced through the even heat softening effect, the machinability of the materials is improved, the cutting force and cutter abrasion are reduced, and the machining problem of the difficult-to-machine materials is solved. The invention further provides the shimming laser-assisted milling machining method suitable for the difficult-to-machine materials. The machining device is adopted in the shimming laser-assisted milling machining method.

Description

Technical field[0001]The present invention relates to the field of laser assist milling processing, and more particularly to a homogenous laser assisted milling process suitable for difficult processes.Background technique[0002]With the rapid development of aerospace, space technology, precision manufacturing and other industries, advanced engineering materials such as high temperature alloys, titanium alloys, composite materials and engineering ceramics have emerged. These materials have extremely widely used properties due to high hardness, high strength, high temperature resistance, and wear resistance. At the same time, these materials have caused high machining costs due to high cutting force, high cutting temperature, and severe tool wear, which have high machining costs, low production efficiency, and is called difficult to process materials, which makes great challenges for machining. In recent years, heating auxiliary cutting technology is an effective method for solving pr...

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Problems solved by technology

However, most of the Gaussian laser beams used at this stage have a Gaussian distribution of energy density, and the temperature of the laser beam irradiated on the surface of the material is also Gaussian. It is easy to cause uneven thermal softening when used in processing. The temperature of the middle part of the laser beam High, the degree of material softening is high, and the temperature at the edge of the laser beam is low, the degree of material soft

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