A method for laser coordinated bending of metal laminates

Abstract

The invention provides a bending method of a metal laminate in coordination with laser, and belongs to the technical field of heating and forming a composite laminate. The bending method is characterized in that one end of the laminate is clamped by a clamp, the clamp which is used for clamping the laminate is arranged on a working platform of a laser machining machine, the laser power range of a laser beam is 60-100 W, the scanning speed range of the laser beam is 600-1000 mm / min, the laser beam moves on the surface of a covering layer of the laminate along a set scanning line, stress mutation is generated in a light spot area, an auxiliary heat source is applied to a stress mutation area and moves along with the laser beam, the energy input of the auxiliary heat source is adjusted according to a stress distribution state on a combination surface, the energy input of the auxiliary heat source on the combination surface is reduced when the stress mutation is increased, the energy input of the auxiliary heat source on the combination surface is increased when the stress mutation is reduced, the stress mutation on the combination surface is restrained, a prospective forming and bending angle is realized, the technical requirement that no defect is generated on the combination surface is met, and thus the heating and the bending of the metal laminate are coordinated to be consistent.

Description

technical field [0001] The invention belongs to the technical field of thermal forming of composite material laminates, in particular to a method for laser coordinated bending of metal laminates, which is applied to laser heating and bending of bulkhead parts of high-end carriers. Background technique [0002] Metal laminates are ideal materials for the preparation of new corrugated bulkheads. Metal laminates are prepared by compounding two or more metal materials with different materials, physical and mechanical properties. More superior characteristics than a single material. Due to the development of aviation and marine engineering, materials are required to have high strength, high modulus, high temperature resistance and other properties, and higher requirements are put forward for the specific gravity, toughness, wear resistance, corrosion resistance and other properties of materials, and even some special materials require materials The strength and modulus of elast...

AI Technical Summary

Problems solved by technology

The new corrugated bulkhead is made of metal laminates, which have the characteristics of different material surface bonding and sudden changes in material, mechanical and mechanical properties along the thickness direction, which makes its forming accuracy and quality difficult to accurately control, and even failure , which limits the carrying capacity of high-end equipment such as aircraft and deep-water submersibles

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