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A Welding Deformation Analysis and Prediction Method

A welding deformation and prediction method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of not considering residual stress, achieve accurate and reliable analysis and prediction, optimize welding methods, and reduce welding deformation. Effect

Active Publication Date: 2017-06-23
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, in the welding design process, two-dimensional shell elements are used for the simulation analysis of the weld, which regards the weld structure as a part of the base material, and does not consider the residual stress generated during the welding process at all.

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  • A Welding Deformation Analysis and Prediction Method
  • A Welding Deformation Analysis and Prediction Method
  • A Welding Deformation Analysis and Prediction Method

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Embodiment Construction

[0039] The following introduces some of the possible embodiments of the present invention, which are intended to provide a basic understanding of the present invention, but are not intended to identify key or decisive elements of the present invention or limit the scope of protection. It is easy to understand that, according to the technical solution of the present invention, those skilled in the art may propose other alternative implementation manners without changing the essence and spirit of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0040] figure 1 Shown is a schematic flowchart of a method for analyzing and predicting welding deformation according to an embodiment of the present invention. For the...

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Abstract

The invention provides a welding deformation analysis and prediction method and belongs to the technical field of welding. The welding deformation analysis and prediction method includes the steps of (1) actual measurement, (2) analysis of a welding simulation workpiece with computer aided engineering (CAE) and (3) analysis of the entire welding workpiece with the CAE. The welding deformation analysis and prediction method is accurate and reliable in welding deformation analysis and prediction, thereby effectively optimizing welding methods and being very conducive to reducing the degree of welding deformation.

Description

technical field [0001] The invention belongs to the technical field of welding, and relates to a method for analyzing and predicting welding deformation. Background technique [0002] During the welding process, uneven heating makes the temperature of the weld seam and its vicinity very high, while most of the metal far away from the weld seam is not heated, so that the unheated cold metal hinders the weld seam and the metal near the weld seam After cooling, the weld will produce different degrees of shrinkage and internal stress, which is commonly referred to as welding residual stress. This residual stress will directly affect the deformation of the workpiece formed by welding. Therefore, different degrees of deformation will occur in the workpiece formed by welding, that is, welding deformation. [0003] In order to meet the product quality requirements of the welding workpiece, especially the requirements of welding deformation, the actual welding test workpiece can be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 谢骋赵永昌陈璟王蠡
Owner SAIC GENERAL MOTORS