3D printing manufacturing device and method of metal parts

A metal parts, 3D printing technology, applied in the field of parts processing and manufacturing, to achieve the effect of improving material utilization, high mechanical properties, ensuring usability and safety

Active Publication Date: 2013-10-09
航天科工(长沙)新材料研究院有限公司
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  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the processing and manufacturing technology of metal parts with complex structures, the present invention a

Method used

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  • 3D printing manufacturing device and method of metal parts
  • 3D printing manufacturing device and method of metal parts

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Embodiment Construction

[0056] The present invention will be further described in detail below in conjunction with specific examples, but the embodiments of the present invention are not limited thereto, and the process parameters not specifically indicated can be carried out with reference to conventional techniques.

[0057] A 3D printing manufacturing device for metal parts, such as figure 2 As shown, including laser system, powder spreading system, atmosphere protection system, heating system and control system.

[0058] The laser system includes a laser 1 , an optical isolator 2 , a beam expander 3 , a scanning galvanometer 4 , and a focusing lens 5 . The laser 1 is a fiber laser, the laser output power is 200W, the wavelength is 1065nm, and the working mode is TEM 00 Mode, beam quality ≤ 1.2, spot diameter 5mm. The beam expansion factor of the beam expander 3 is 3. The scanning angle range of the scanning galvanometer 4 is ±20°. The focal length of the focusing lens 5 is 360mm. Laser 1 em...

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Abstract

The invention discloses a 3D printing manufacturing device and method of metal parts. The 3D printing manufacturing device and method aim to efficiently manufacture the metal parts. The 3D printing manufacturing device of the metal parts comprises a laser system, a powder laying system, an atmosphere protecting system, a heating system and a computer control system. The 3D printing manufacturing device further comprises a closed work cavity, a forming cylinder is arranged inside the work cavity, and the laser system is arranged above the forming cylinder; the powder laying system is arranged on the upper side of the work cavity; one side of the work cavity is provided with the atmosphere protecting system, and the bottom of the forming cylinder is provided with the heating system; the lower side of the forming cylinder is provided with a driving device; one side of the work cavity is provided with a vacuum pump; the computer control system comprises a computer which is connected with a control card of the driving device and a control card of the laser system through data wires. According to the 3D printing manufacturing device and method, the metal parts of any structures can be directly manufactured, digital manufacturing from 3D digital models to part entities is achieved, and processing and manufacturing efficiency and the material using ratio of aluminium alloy parts of complex structures can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of parts processing and manufacturing, in particular to a 3D printing manufacturing device and method for metal parts. Background technique [0002] Aluminum alloy has the advantages of low density, high strength, and good corrosion resistance. It is the most widely used non-ferrous metal structural material in industry, and has a large number of applications in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. At present, the aluminum alloy parts used in industry show a trend of complex structure, such as complex cavity, curved surface, or structural characteristics such as thin walls. Especially for aluminum alloy parts used in the aerospace field, the general wall thickness is about 1mm. Using traditional processing and manufacturing technologies such as forging, stamping, machining, and rolling, only aluminum alloy parts with regular structures can be produced....

Claims

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Application Information

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IPC IPC(8): B22F3/105
CPCY02P10/25
Inventor 周朝辉张刚
Owner 航天科工(长沙)新材料研究院有限公司
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