Detection optimization system and method for laser near-net forming defects

A laser near-net-shaping and optimization method technology, applied in the field of additive manufacturing, can solve the problem of 3D printing not being able to detect defects, and achieve the effect of rapid and accurate defect detection process

Inactive Publication Date: 2020-07-10
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that 3D printing cannot carry out defect detection simultaneously in the prior art

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  • Detection optimization system and method for laser near-net forming defects
  • Detection optimization system and method for laser near-net forming defects
  • Detection optimization system and method for laser near-net forming defects

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Embodiment Construction

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, ra...

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Abstract

The invention, which belongs to the technical field of additive manufacturing, particularly provides a detection optimization system and method for laser near-net forming defects. The system comprisesa motion module with a tracking function, a graphic processing module, and a 3D printing parameter adjustment module. The motion module with the tracking function is used for dynamically acquiring asurface image of a laser processing area in real time; the graphic processing module is used for processing the surface image so as to realize accurate positioning and recognition of a defect area inthe machining process; and the 3D printing parameter adjusting module is used for adjusting processing parameters of 3D printing according to the data information and the processing position of the graphic processing module. The machine vision and image processing technology is adopted for defect detection; and compared with human eye detection, the defect detection process is rapider and more accurate. A laser tracker is used for accurately locating a laser action area, a camera tracks laser to perform accurate picture acquisition, defect information is automatically fed back, LENS technological parameters are effectively adjusted in a targeted mode, so that high-quality parts are generated.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a detection and optimization system and method for laser near-net-shaping defects. Background technique [0002] Laser Near Net Shaping (LENS) is a new type of laser rapid prototyping manufacturing process, which is a kind of additive manufacturing. The principle is that the focused laser beam moves according to a preset path under control. While moving, the powder nozzle directly transports the metal powder to the molten pool formed by the laser spot on the solid substrate, making it from point to line, Solidify from line to surface in order to complete the printing work of a layer section. These layers are superimposed to create a near-net-shape component body. LENS technology can realize moldless manufacturing for small and medium-scale production parts, saving costs and shortening the production cycle. Especially for those parts with high perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G01N21/88B22F3/105B33Y50/02
CPCG01N21/84G01N21/8851B33Y50/02G01N2021/8411G01N2021/8887B22F10/00B22F10/36B22F10/38B22F10/25B22F10/85B22F12/90Y02P10/25
Inventor 李辉刘胜王浩丞
Owner WUHAN UNIV
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