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Laser-arc composite partition additive manufacturing process and device

An additive manufacturing and laser technology, applied in the field of laser-arc composite heat source additive manufacturing process and equipment, can solve problems such as low-cost production efficiency and high forming accuracy, improve utilization, solve dimensional accuracy and surface quality Not high, the effect of reducing pollution

Inactive Publication Date: 2018-07-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that low cost, high production efficiency and high forming precision cannot be achieved simultaneously in additive manufacturing with a single heat source, the purpose of the present invention is to provide a process and equipment for laser-arc composite zoned additive manufacturing. The invention has: Low comprehensive cost, high production efficiency, high surface precision of parts, good mechanical properties, and ability to meet the requirements of use, etc.

Method used

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  • Laser-arc composite partition additive manufacturing process and device

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Embodiment 1

[0024] A laser-arc composite additive manufacturing process and equipment of the present invention will be described in detail below in conjunction with the accompanying drawings. A laser-arc composite partition additive manufacturing process and equipment, characterized in that the preparation method includes the following steps:

[0025] For the additive manufacturing of 5356 aluminum alloy trapezoidal parts, the method of sub-area manufacturing is adopted. The cross-sectional size of the part is 1.5mm at the bottom, 10mm at the bottom, and 10mm high. Laser-MIG composite additive manufacturing is used in areas with a width greater than 3mm, such as figure 2 As shown; laser additive manufacturing is used in areas with a width of less than 3mm, such as image 3 shown. The test substrate is 200mm×200mm×19mm 6061 aluminum alloy plate, and the filling material is ER5356 aluminum alloy wire with a diameter of 1.2mm. Before the experiment, the oxide film on the surface of the a...

Embodiment 2

[0029] A laser-arc composite additive manufacturing process and equipment of the present invention will be described in detail below in conjunction with the accompanying drawings. A laser-arc composite partition additive manufacturing process and equipment, characterized in that the preparation method includes the following steps:

[0030] For the additive manufacturing of 4043 aluminum alloy trapezoidal parts, the method of sub-area manufacturing is adopted. The cross-sectional size of the part is 1.5mm at the bottom, 10mm at the bottom, and 10mm high. Laser-TIG composite additive manufacturing is used in areas with a width greater than 3mm, such as Figure 4 As shown; laser additive manufacturing is used in areas with a width of less than 3mm, such as image 3 shown. The test substrate is 200mm×200mm×19mm 6061 aluminum alloy plate, and the filling material is ER4043 aluminum alloy wire with a diameter of 1.2mm. Before the experiment, the oxide film on the surface of the a...

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Abstract

The invention relates to a laser-arc composite partition additive manufacturing process and device. According to the manufacturing process and device, the problem that during a single heat source additive manufacture, the low cost, the high production efficiency and the high forming precision cannot be simultaneously achieved is solved, and the flexible intelligent manufacturing of the part withthe complex structure is realized. The production cost is reduced, the production efficiency is improved, and meanwhile, the part with excellent performance is obtained. The additive manufacturing process comprises a forming part flexible intelligent manufacturing area division, the process of each area of the forming part is selected and determined, and finally the additive manufacturing experiment is carried out. The additive manufacturing device comprises an MIG welding machine, a TIG welding machine and a laser, wherein the central controller adjusts the heat source according to a set program, and parts which are not started to be used in the device can be lifted and placed one side by a system when the additive manufacturing experiment is carried out.

Description

Technical field: [0001] The invention belongs to the field of composite energy additive manufacturing, and specifically relates to a process and equipment for additive manufacturing using laser-arc composite heat sources, which can realize highly flexible, high-efficiency, and high-quality additive manufacturing. Background technique: [0002] Arc additive manufacturing technology has the advantages of high efficiency, low cost, and good applicability of metal materials; however, there is a certain gap between the forming accuracy of arc additive manufacturing parts and net shape parts, and the residual stress is relatively large. Therefore, low cost, high production efficiency, and high molding accuracy cannot be achieved at the same time when performing additive manufacturing with a single heat source. [0003] The laser-arc composite heat source can give full play to their respective advantages and make up for their respective deficiencies at the same time. The addition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/348B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00
Inventor 占小红颜廷艳齐超琪
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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