Linear friction welding joint material flow rule analysis method

CN119328347APending Publication Date: 2025-01-21SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Patent Information

Application Number
CN202411592873.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-01-21

AI Technical Summary

Technical Problem

It is difficult to directly obtain the flow rules of welding joint materials during linear friction welding of the entire blade members of the aero engine, and the finite element analysis has a difference from the actual welding situation.

Method used

Small-sized dissimilar alloys are preset at the welding interface and deformed as the welded joint materials. By analyzing the deformation behavior of the dissimilar alloys, the flow pattern of the welded joint materials during the welding process is directly reflected.

Benefits of technology

A precise grasp of the flow of materials at the joint of the connector during the linear friction welding process, directly observed the flow of welding joint materials, and truly reflects the flow of welding joint materials.

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Abstract

The invention provides a flow rule analysis method for a linear friction welding joint material. The flow rule analysis method comprises the following steps: step 1, selecting a preset material; 2, machining a preset hole, and filling the preset hole with a preset material with the same size; thirdly, the to-be-welded part which is filled with the preset material and the to-be-welded part which is not filled with the preset material are welded according to proper linear friction welding process parameters; fourthly, the linear friction welding joint is longitudinally cut in the upsetting force direction; and 5, the characteristics of the preset material filled in each section of welding joint are observed. According to the method, the small-size dissimilar alloy is preset at the welding interface and deforms along with the material at the welding joint, and the flow rule of the material at the welding joint in the welding process is directly reflected by analyzing the deformation behavior of the dissimilar alloy, so that the flow behavior of the material at the joint in the linear friction welding process is accurately mastered.
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Citation Information

Patent Citations

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  • Tracing method for metal plastic flow in ultrasonic welding process

    CN112462027A

  • Multiple pass and multiple layer friction stir welding and material enhancement processes

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  • Leak-tight heat exchanger integrity inspection using tracer material

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