Heterogeneous multi-material additive manufacturing system

Abstract

The invention belongs to the field of additive manufacturing, and discloses a heterogeneous multi-material additive manufacturing system. The heterogeneous multi-material additive manufacturing system comprises a jointed-arm robot, a printing device, a material reducing device and a monitoring feedback device. By the adoption of the rotary-type multi-sprayer switching printing device, the mode that a plurality of wire feeding printing mechanisms rotate to be switched is adopted to conduct multi-material multi-process real-time switching printing, and multi-material multi-process efficient 3D printing formation is realized; and the binocular stereoscopic vision on-line real-time monitoring feedback device can feed back layer-layer temperature information and 3D profile information of machined parts in time and compares the information with an original model to be calibrated, and the material reducing processing opportunity and corresponding material reducing processing parameters are determined. By means of the heterogeneous multi-material additive manufacturing system, additive manufacturing and subtractive manufacturing can achieve collaboration in a high-precision and high-efficiency mode, and large complex structure parts of different inorganic nonmetal composite materials can be formed. Meanwhile, the heterogeneous multi-material additive manufacturing system is simple in structure and easy to operate and control.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and more specifically relates to a heterogeneous multi-material additive manufacturing system. Background technique [0002] Additive manufacturing technology is a process in which materials are added point by point, line by line, and surface to realize the accumulation and forming of complex parts. Compared with traditional processing methods, additive manufacturing can quickly manufacture parts with free-form surfaces and complex structures, with high material utilization, high automation, and minimal manual intervention. Generally speaking, the smaller the thickness of the layer, the higher the accuracy, but also the longer the time required, which increases the cost. Traditional subtractive machining, especially CNC machining, has the characteristics of high precision, high efficiency, good processing flexibility, and simple process planning, which can make up for the shortcomings of ad...

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Problems solved by technology

[0006] (2) For inorganic non-metallic composite materials, the accumulated filaments extruded by the printing nozzle are in a viscous fluid state or semi-solid state, with high temperature and certain viscoelasticity, so they cannot be processed immediately, and different Due to the different microstructures of inorganic materials, there are large differences in thermodynamic properties and mechanical properties, so it is necessary to accurately determine the processing timing and subtractive processing parameters;

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