Simulation analysis method for reducing welding deformation and welding process obtained through simulation analysis method

A technology of simulation analysis and welding deformation, applied in the field of ships, can solve the problems of heavy repair work, welding deformation, affecting construction accuracy, etc.

Inactive Publication Date: 2021-05-11
AVIC DINGHENG SHIPBUILDING
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Problems solved by technology

[0002] At present, in the shipbuilding process, plate tailor welding is one of the key technologies. Only plate tailor welding can produce larger steel plates. Of course, in the welding process, welding deformation will inevitably occur, and the welding is not good. Makes the repair work after welding a lot, affecting the construction accuracy

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  • Simulation analysis method for reducing welding deformation and welding process obtained through simulation analysis method

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[0024] Below in conjunction with specific embodiment, further illustrate the present invention, it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after reading the present invention, those skilled in the art will understand the various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0025] Such as Figure 1-2 As shown, a simulation analysis method for reducing welding deformation includes the following steps:

[0026] Step 1. Establish a thin plate model: the thin plate includes a first thin plate 1, a second thin plate 2, a third thin plate 3 and a fourth thin plate 4, the second thin plate 2 includes a thin plate A 201 and a thin plate B 202, and the thin plate A 201 The length is less than the length of the thin plate B 202, the sum of the lengths of the thin plate A 2...

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Abstract

The invention discloses a simulation analysis method for reducing welding deformation and a welding process obtained through the simulation analysis method in the technical field of ships. The method comprises the following steps that 1, a thin plate model is established; 2, thin plate splicing models of different welding schemes are established; 3, computer thermal-mechanical coupling finite element analogue simulation is carried out; and 4, post-welding deformation distribution conditions of the thin plate splicing model of different welding schemes are analyzed and compared. The welding process obtained through the method comprises the following steps that 1, a thin plate A and a thin plate B are welded, and the welding direction is from top to bottom; 2, a second thin plate and a third thin plate are welded, and the welding direction is from the middle to the two sides; 3, the third thin plate and a fourth thin plate are welded, and the welding direction is from the middle to the two sides; and 4, a first thin plate and the second thin plate are welded, and the welding direction is from the middle to the two sides. The simulation analysis method for reducing welding deformation and the welding process have the advantage that the welding process with high welding quality is obtained by analyzing and comparing different welding sequences and different welding directions.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a simulation analysis method for reducing welding deformation and a welding process obtained therefrom. Background technique [0002] At present, in the shipbuilding process, plate tailor welding is one of the key technologies. Only plate tailor welding can produce larger steel plates. Of course, in the welding process, welding deformation will inevitably occur, and the welding is not good. This makes the repair workload after welding very large, which affects the construction accuracy. Contents of the invention [0003] The purpose of the present invention is to provide a simulation analysis method for reducing welding deformation and the resulting welding process. By analyzing and comparing different welding sequences and different welding directions for assembly welding, a welding process with high welding quality can be obtained, especially suitable for stainless steel sheets...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/00
CPCB23K31/02B23K37/00B23K2101/185
Inventor 芮晓松朱一多
Owner AVIC DINGHENG SHIPBUILDING
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