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Metal welding rapid formation system and method based on CMT

A metal welding and fast technology, applied in welding equipment, metal processing equipment, arc welding equipment, etc., can solve the problems of insufficient depth of metal welding, large heat input, low precision and reliability, and achieve the effect of ensuring precision and quality

Inactive Publication Date: 2015-08-19
XI AN JIAOTONG UNIV
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Problems solved by technology

[0003] At present, the research on metal welding rapid prototyping technology is not deep enough, and there are still many problems in practical application.
In terms of technology, the forming accuracy of welded formed parts is low, the surface quality is poor, the roughness is large, and the process is unstable
In terms of forming system: the accuracy and reliability of the system are not high, and the forming system does not have a closed-loop control function; the system has a large heat input, which is easy to cause deformation of the formed part, and does not have a temperature detection and feedback system

Method used

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  • Metal welding rapid formation system and method based on CMT
  • Metal welding rapid formation system and method based on CMT
  • Metal welding rapid formation system and method based on CMT

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Embodiment Construction

[0036]In order to make the advantages, technical solutions and objectives of the present invention clearer, the embodiments of the present invention will be fully and clearly described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present application, not all of them.

[0037] see figure 1 As shown, the present invention provides a metal welding rapid prototyping system based on CMT, including: industrial computer 101, CMT welding expert system 102, CMT welding device 103, image acquisition card 104, structured light vision sensor 105 and infrared thermometer 106.

[0038] The industrial computer 101 is used to process data according to the layered slicing of the 3D CAD model of the target formed part, generate path code information for welding forming and serve as the hardware basis of the CMT welding expert system 102 .

[0039] The CMT welding expert system 102 is used to generate the control ...

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Abstract

The invention discloses a metal welding rapid formation system and method based on CMT. The metal welding rapid formation system comprises an industrial personal computer for generating the path code information of welding formation, a CMT welding expert system for conducting inference and obtaining conclusion according to the rules in a collecting data matching knowledge base and converting the conclusion into the feedback control signals for closed-loop control, a CMT welding device for piling up and forming the objective formation parts; a structured light visual sensor for conducting the surface topography measurement on the piled formed welding pass, an image capture card for processing the signals collected by the structured light visual sensor and an infrared thermometer for measuring the surface temperature of the piled welding pass. Through the measurement of the temperature and the surface topography of the welding formation welding passes, a welding formation expert system, a formation height and width feedback system and a temperature detection feedback system are established, the closed-loop control of the CMT metal welding rapid formation is realized, and the precision and the quality of formation is ensured.

Description

【Technical field】 [0001] The invention relates to the field of welding rapid prototyping, in particular to a metal welding rapid prototyping system based on cold metal transition technology (CMT), which can realize online detection and feedback. 【Background technique】 [0002] Metal welding rapid prototyping technology is a rapid prototyping technology that combines metal welding technology and rapid prototyping discrete accumulation principle. The 3D CAD solid model of the target part is obtained through 3D solid scanning or direct modeling, and the model is pressed along a certain coordinate direction. A certain thickness is sliced ​​in layers, and then the metal wire is melted by the welding arc, and each thin layer is formed according to the established forming path, and the layers are accumulated to form an advanced manufacturing technology of three-dimensional solid parts. Compared with the current rapid prototyping technology, metal welding rapid prototyping technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/095B23K9/00
CPCB23K9/00B23K9/0953B23K9/0956
Inventor 王伊卿白浩曾泽文陈剑卢秉恒刘红忠
Owner XI AN JIAOTONG UNIV
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