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Method and system for establishing correlation models between welding process parameters and weld bead forming parameters

A technology for welding process and model establishment, which is applied in the field of model establishment related to welding process parameters and welding bead forming parameters, can solve the problems of unsystematic test data, difficult and thick plate robot path planning, etc., and achieve the effect of convenient data acquisition.

Active Publication Date: 2020-11-06
SHANDONG UNIV
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Problems solved by technology

At present, although there are literature reports on the relationship between welding process parameters and some weld bead forming parameters, due to the unsystematic test data, or the model is based on theoretical derivation, there are large errors, and it is difficult to be used for path planning of thick plate robot welding

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  • Method and system for establishing correlation models between welding process parameters and weld bead forming parameters
  • Method and system for establishing correlation models between welding process parameters and weld bead forming parameters
  • Method and system for establishing correlation models between welding process parameters and weld bead forming parameters

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[0034] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0035] It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0036] Implementation example one

[0037] This embodiment discloses a method for establishing a model related to welding proc...

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Abstract

This disclosure proposes a method and system for establishing a model related to welding process parameters and weld bead forming parameters, using CO 2 The gas shielded welding method was used to carry out welding experiments, and the parameters of the weld bead under different welding process parameters were obtained; based on the quadratic general rotation regression analysis method, the relationship between the weld width, reinforcement and weld cross-sectional area with regard to welding current and welding speed was initially established. Quadratic regression equation; perform parameter optimization to obtain the quadratic regression equation of weld width, reinforcement and weld cross-sectional area after inspection with respect to welding current and welding speed; reverse code the regression equation to obtain CO after reverse code 2 Gas shielded welding bead forming parameters weld bead width, reinforcement and weld cross-sectional area and welding process parameters welding current and welding speed correlation model. Through this model, not only the welding process parameters for forming the required weld bead can be determined, but also the weld bead forming parameters can be determined according to the welding process parameters.

Description

technical field [0001] The present disclosure relates to the field of welding technology, in particular to a method and system for establishing models related to welding process parameters and weld bead forming parameters. Background technique [0002] The cutter head of the shield machine is a thick plate welded structural part, and manual welding is generally used, which has poor welding quality stability and low production efficiency. Therefore, consider robotic welding as an alternative to manual welding. However, the adaptive ability of thick plate robot welding is poor, and there are still many problems in the application of thick plate multi-layer multi-pass welding. Especially for problems such as robot trajectory correction and real-time adjustment of welding process parameters when the thick plate is deformed during the welding process, there are few studies. [0003] Considering the practical application of engineering, CO can be used for the shield machine cutt...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 孙俊生温永策李相洋曹永华栾守成郝小东崔凯
Owner SHANDONG UNIV
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