A control method, device, system and storage medium for additive manufacturing

Abstract

The invention discloses a control method, device, system and storage medium for additive manufacturing. The control method of additive manufacturing includes: obtaining the processing parameter conversion node of the target to be processed; determining the composite excitation parameters of each processing parameter conversion node according to the performance requirements of each processing parameter conversion node, wherein the composite excitation The parameters include laser excitation parameters, electromagnetic field excitation parameters and vibration platform excitation parameters; determine the change strategy of the composite excitation parameters of the adjacent processing parameter conversion nodes; convert the composite excitation parameters and the change strategies of the nodes according to each of the processing parameters A control instruction is generated, so that the laser controller, the electromagnetic field controller and the vibration platform controller control the processing of the object to be processed according to the control instruction. The technical solution of the embodiment of the present invention realizes the precise control of the microstructure of the additive manufacturing, and the degree of freedom of 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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