Control method, device and system for additive manufacturing and storage medium

Abstract

The invention discloses a control method, device and system for additive manufacturing and a storage medium. The control method for additive manufacturing comprises the steps that machining parameterswitching nodes of a to-be-machined target are obtained; compound excitation parameters of the machining parameter switching nodes are determined according to the performance requirements of the machining parameter switching nodes, wherein the compound excitation parameters include the laser excitation parameter, the electromagnetic field excitation parameter and the vibrating platform excitationparameter; a change strategy of the compound excitation parameters of every two adjacent machining parameter switching nodes is determined; and a control command is generated according to the compoundexcitation parameters of the machining parameter switching nodes and the change strategies, so that a laser controller, an electromagnetic field controller and a vibrating platform controller are made to control the machining process of the to-be-machined target according to the control command. By adoption of the technical scheme of the embodiment, accurate control and regulation of microstructures during additive manufacturing are achieved, and the degree of freedom of regulation and control is large.

Description

technical field [0001] Embodiments of the present invention relate to mechanical processing technology, and in particular to a control method, device, system and storage medium for additive manufacturing. Background technique [0002] As an additive manufacturing technology, laser powder feeding cladding technology has been widely used in the field of metal parts manufacturing. Combining laser powder feeding cladding technology with industrial manipulators, high-power lasers are used to melt and deposit coaxially conveyed metal powder materials, which are overlapped and clad one by one to form layers, and stacked layer by layer to form three-dimensional components. With the increasing demand for high-performance gradient functional components in aerospace, nuclear power, marine and medical fields, the use of laser powder-fed cladding technology to manufacture gradient tissue materials has great development space and application value. [0003] In the actual laser powder fee...

AI Technical Summary

Problems solved by technology

[0003] In the actual laser powder feeding additive manufacturing process, affected by factors such as component shape changes, heat accumulation in the cladding area, and thermal cycles, the dependence of the molten pool solidification structure on process parameters is uncertain, resulting in the microstructure of laser additive manufacturing components. And its mechanical properties are difficult to achieve precise micro-scale regulation and macro-customized distribution

At present, by adding various auxiliary control methods such as vibration, constant magnetic field, electric field, and coupled electric-magnetic field in the laser additive manufacturing process, the solidification structure of the laser molten pool can be regulated to a certain extent, but the existing auxiliary methods are still It is difficult to meet the precise regulation of the microscale of the solidification structure of the laser molten pool

[0004] Therefore, using the existing laser additive manufacturing process and auxiliary control methods, there are still huge challenges in the local precise regulation of the molten pool solidification structure and the macroscopic customized distribution.

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