Energy storage spot welding method for stepped honeycomb with shielding structure at welding site

By using specific electrode design and welding steps, the positioning strength problem of complex irregular honeycomb welded parts was solved, achieving high-quality energy storage spot welding and improving the welding qualification rate and economic benefits of the parts.

CN120395080BActive Publication Date: 2026-06-16SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Patent Information

Application Number
CN202510670596.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-06-16
Estimated Expiration
2045-05-23

AI Technical Summary

Technical Problem

Conventional spot welding positioning methods are insufficient to meet the positioning strength requirements of complex irregular honeycomb welded parts, resulting in unstable part position and dimensional relationships and affecting welding quality.

Method used

By employing specific electrode design and welding steps, including dividing the weld area, designing L-shaped electrodes and negative electrode holders, the current is ensured to flow out along the shortest path, and the weld strength is improved through energy storage spot welding.

Benefits of technology

It improves the spot welding quality of stepped honeycomb, meets the requirements of subsequent vacuum brazing, increases the welding qualification rate of parts, reduces rework and scrap, and saves processing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a kind of energy storage spot welding method of step honeycomb with shielding structure in welding position, and the technical scheme comprises the following steps: step one: dividing welding point area on the surface of honeycomb to be spot welded;Step two: design the positive electrode of electrode.Step three: design the negative electrode holder according to the size of the outer surface of the shell part, so that the current flows out from the shortest path.Step four: determine the number N of welding points in each spot welding area.Step five: adjust the spot welding voltage and try welding on the surface.Step six: assemble the honeycomb to the shell part.Step seven: replace the corresponding positive electrode in turn, and complete the energy storage spot welding.The application has the following advantages: improving the spot welding quality of step honeycomb, making the positioning strength of honeycomb meet the subsequent vacuum brazing welding requirements, improving the welding qualification rate of parts, avoiding parts rework or scrap, saving processing cost, achieving good benefit effect, and the economic benefit will also be greatly improved.
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Citation Information

Patent Citations

  • Method for vacuum brazing of large-size outer ring welding assembly

    CN112958866A

  • Honeycomb ring and large part energy storage spot welding tool and method

    CN118180544A