Real-time monitoring rapid prototyping device and method based on femtosecond laser composite technology

A femtosecond laser, real-time monitoring technology, applied in the direction of process efficiency improvement, additive processing, energy efficiency improvement, etc., can solve the problems of low strength, powder blowing, high residual stress, improve control ability and high yield Effect

Active Publication Date: 2015-10-14
WUHAN UNIV +2
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Problems solved by technology

[0006] Aiming at the problems of low strength, powder blowing, spheroidization, high residual stress and high surface roughness in the current rapid prototyping manufacturing method, the present invention combines nanosecond laser, picosecond laser, femtosecond laser composite technology and real-time monitoring technology to propose A real-time monitoring rapid prototyping equipment and method based on femtosecond laser composite technology

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  • Real-time monitoring rapid prototyping device and method based on femtosecond laser composite technology
  • Real-time monitoring rapid prototyping device and method based on femtosecond laser composite technology

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Embodiment Construction

[0029] The equipment of the present invention mainly includes a vacuum chamber (100), a working table (101), a feeding device (109), a multi-wavelength fiber laser (120), a real-time monitoring system (110) and a control center. See figure 1 , the working table (101), feeding device (109), multi-wavelength fiber laser (120), and real-time monitoring system (110) are all located in the vacuum chamber (100), and the multi-wavelength fiber laser (120) and real-time monitoring system ( 110) is also connected with the control center outside the vacuum chamber (100). The workbench (101) is provided with a cooling liquid circulation pipe (111), through which the cooling liquid is used to cool the molded product (102). In practice, the cooling liquid can be water or liquid nitrogen. The feeding device (109) is used to supply raw materials to the workbench (101).

[0030] The multi-wavelength fiber laser (120) integrates a nanosecond laser probe (106), a picosecond laser probe (107) ...

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Abstract

The invention provides a real-time monitoring rapid prototyping device and method based on the femtosecond laser composite technology. The device comprises a vacuum chamber (100), a workbench (101), a feeding device (109), a multi-wavelength fiber laser (120), a real-time monitoring system (110) and a control center, wherein the workbench (101), the feeding device (109), the multi-wavelength fiber laser (120) and the real-time monitoring system (110) are arranged in the vacuum chamber (100), and the multi-wavelength fiber laser (120) and the real-time monitoring system (110) are further in signal connection with the control center outside the vacuum chamber (100). The novel rapid prototyping device and method are provided for manufacturing high-strength, high-finished-product-rate and complex-structure parts and are particularly suitable for various sensors higher in requirement for precision and consistency.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a real-time monitoring rapid prototyping device and method based on femtosecond laser composite technology. Background technique [0002] Rapid prototyping technology is a manufacturing method that uses materials to build up devices layer by layer or point by point. It mainly converts three-dimensional parts into a series of two-dimensional components through comprehensive mechanical engineering, CAD, numerical control technology, laser technology and materials. Superposition of part section fabrication. For metal materials, laser sintering is generally used to sinter or melt metal powder under gas protection. [0003] At present, the most widely used are far-infrared (FIR) and ultraviolet (UV) lasers, and the former usually uses sealed CO 2 Lasers, while the latter generally use UV diode-pumped solid-state (UV-DPSS) lasers and excimer lasers. These laser...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y30/00
CPCY02P10/25
Inventor 曹祥东刘胜付兴铭刘亦杰郑怀沈沁宇
Owner WUHAN UNIV
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