High frequency heating assisted friction stir welding device

By integrating a high-frequency heater into the friction stir welding device and enabling multi-degree-of-freedom adjustment, the problem of stirring head wear is solved, welding efficiency and quality are improved, and equipment life is extended.

CN224406641UActive Publication Date: 2026-06-26SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU UNIV
Filing Date
2025-07-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, the stirring head wears severely due to friction and high temperature during friction welding, resulting in reduced welding quality and lifespan. While increasing the rotation speed or pressure can improve the situation, it is not ideal.

Method used

A high-frequency heater is integrated on the side of the welding mechanism. The welding area is preheated by high-frequency induction heating. The high-frequency heater can move in multiple degrees of freedom through lifting and horizontal adjustment components, which can accurately match the welding path, reduce material hardness, and reduce frictional resistance of the stirring pin.

Benefits of technology

High-frequency preheating reduces material hardness, decreases frictional resistance and heat load on the stirring pin, improves welding efficiency and quality, and extends equipment life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224406641U_ABST
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Abstract

The utility model relates to welding auxiliary technical field, proposes a kind of high-frequency heating auxiliary friction stir welding device, the present design includes welding mechanism, high-frequency heater being arranged in the side surface of welding mechanism, and stirring needle is rotatably connected to the bottom of welding mechanism, and lifting adjustment assembly is arranged in the side surface of welding mechanism, and lifting adjustment assembly includes the sliding seat that can drive high-frequency heater and move vertically in the side surface of welding mechanism, horizontal adjustment assembly is arranged in the inside of sliding seat, and horizontal adjustment assembly includes two groups of the sliding sleeve that can drive high-frequency heater and slide horizontally and slide lock;The present design is through high-frequency preheating and two big innovations of multi-degree-of-freedom adjustment, solves the pain point that stirring head is easy to wear and tear, not flexible in traditional friction stir welding adjustment, significantly improves welding efficiency, quality and equipment life, and all mechanical design is applicable to industrial high-strength application scene.
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