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A three-laser beam intelligent additive and subtractive composite manufacturing system

A manufacturing system and technology of adding and subtracting materials, applied in the field of additive manufacturing, can solve problems such as voids, common surface quality, and prone to cracks, and achieve the effect of reducing costs, improving the performance and quality of parts, and bonding firmly

Active Publication Date: 2022-03-22
SHANTOU UNIV
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Problems solved by technology

It can solve internal defects such as cracks, pores, voids and common surface quality problems that are prone to occur in the manufacturing process of large-scale key metal components

Method used

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  • A three-laser beam intelligent additive and subtractive composite manufacturing system
  • A three-laser beam intelligent additive and subtractive composite manufacturing system

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] This embodiment proposes an intelligent composite processing system for adding and subtracting materials based on powder feeding laser melting deposition. The system composition is as follows figure 1 shown.

[0035] The first laser unit is used to generate the first laser beam, and cooperates with the powder feeding device to melt and deposit according to the processing data to form a material layer. The first laser unit includes the necessary laser generator that can generate a continuous laser source, the optical fiber for laser transmission; also includes the powder feeder and the powder feeding system of the coaxial powder feeding nozzle; includes the motion system, such as including laser collimation and The six-axis articulated welding robot of the ...

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Abstract

The embodiment of the invention discloses a three-laser beam intelligent addition and subtraction composite manufacturing system and method. The invention can effectively reduce defects such as cracks, pores, and surface roughness of workpieces in laser melting deposition additive manufacturing, and can be applied in the additive manufacturing process of large metal components to improve the manufacturing yield and reduce costs. The present invention uses the characteristics of pulsed laser processing to etch the internal defects that appear in the deposited layer of the workpiece to expose them, and then conducts pulsed laser melting deposition in the notches or tiny gaps to fill the missing parts, and the second The material of the fused deposition part has high density, and the raw material layer and the secondary deposition material are firmly bonded, which can effectively improve the performance and quality of the part. The invention combines the image acquisition and the deep neural network quality evaluation model, and the system has high robustness and high accuracy.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to a three-laser beam intelligent additive and subtractive composite manufacturing system. Background technique [0002] With the acceleration of the industrial process, the demand for parts structures in aerospace, nuclear power, ships and other fields presents a development trend of large-scale integration, configuration topology, gradient compounding, and structural and functional integration. The traditional "casting and forging + machining "The processing method has been difficult to meet the requirements, and the additive manufacturing technology provides a new solution for it. [0003] Additive manufacturing technology has the characteristics of "multi-type and multi-process coexistence, and numerous material systems", but there are currently key problems such as "low precision of parts and poor stability of parts", which limit the large-scale engineering appli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F3/24B33Y30/00B33Y50/02
CPCB22F3/24B33Y30/00B33Y50/02B22F2003/247B22F10/00B22F12/43B22F12/45B22F10/25B22F10/85B22F12/90B22F10/38Y02P10/25
Inventor 王奉涛李凯强牛小东耿文豹毛忠发魏华贤蔡雄航杨守华
Owner SHANTOU UNIV
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