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Method and system for establishing a related model for welding process parameters and welding bead forming parameters

A technology of welding process and model building, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of unsystematic test data, robot path planning for difficult thick plates, etc., and achieve the effect of convenient data acquisition

Active Publication Date: 2019-09-06
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 a related model for welding process parameters and welding bead forming parameters
  • Method and system for establishing a related model for welding process parameters and welding bead forming parameters
  • Method and system for establishing a related model for welding process parameters and welding 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

The invention provides a method and system for establishing a related model for welding process parameters and welding bead forming parameters. The method comprises the steps: carrying out a welding test by adopting a CO2 gas shielded welding method, and obtaining welding bead forming parameters under different welding process parameters; preliminarily establishing quadratic regression equations of weld bead weld width, excess weld metal and weld joint cross section area with respect to welding current and welding speed based on a quadratic general rotation regression analysis method; carryingout parameter optimization to obtain a quadratic regression equation of the inspected weld bead weld width, excess weld height and weld joint cross section area with respect to welding current and welding speed; and carrying out inverse coding on the regression equation to obtain a correlation model of the CO2 gas shielded welding bead forming parameter welding bead fusion width, the excess weldmetal and the welding seam cross section area after inverse coding as well as the welding current and the welding speed of the welding process parameters. Through the model, not only can welding process parameters for forming the required welding bead be determined, but also welding 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...

Claims

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Application Information

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IPC IPC(8): G06F17/50
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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