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FRICTION STIR WELDING (FSW) CAPABILITY

FRICTION STIR WELDING (FSW) CAPABILITY

FSW is a solid-state joining technology invented by the UK Welding Research Institute in 1991 and hailed as one of the most revolutionary welding technologies of the 20th century. Deyanfu boasts an internationally leading FSW R&D team, has achieved world-class stirring friction welding process capabilities, and serves as a supplier capable of enabling the mass production of stirring friction welding robots.

MAIN PROCESS OF FSW

01 MAIN PROCESS OF FSW

An international-level top-notch R&D team, along with an efficient scientific research transformation mechanism, has achieved world-leading levels in the friction stir welding technology.

THE PRINCIPLE AND CHARACTERISTICS OF FSW TECHNOLOGY

02 THE PRINCIPLE AND CHARACTERISTICS OF FSW TECHNOLOGY

Low distortion — material does not melt, low heat input, minimal welding distortion

Excellent performance — dense forged equiaxed grain structure in the weld nugget zone

Eco-friendly & safe — no arc light, fumes or spatter during welding

High weld quality — high joint strength + high pressure resistance + excellent sealing performance

Wide material range — 2D/3D joining of similar/dissimilar materials (Al, Cu, Mg, Ti, steel)

FSW WELDING CONSUMABLES

03 FSW WELDING CONSUMABLES

Independently developed & fully manufactured throughout the process

The stirring head is the core of the friction stir welding process and is a key factor influencing the performance of the welded joint and production efficiency.

We have an independent stirring head division, having developed over 1,000 types of stirring heads and possessing a rich database of welding consumables processes.

FSW INTELLIGENT EQUIPMENT

04 FSW INTELLIGENT EQUIPMENT

Full Range of FSW Intelligent Equipment Supplier—Providing One-Stop Turnkey Engineering Services

Friction Stir Welding Robot Equipment

Intelligent Phased Array Ultrasonic Automatic Testing Equipment

Moving Gantry Friction Stir Welding Equipment

Static Gantry Friction Stir Welding Equipment

Backfill-Type Friction Stir Spot Welding Robot Equipment

Tabletop Friction Stir Welding Equipment

Friction Stir Welding Milling Composite Center

Deposition Manufacturing Equipment

FSW DISSIMILAR MATERIAL CONNECTIONS

05 FSW DISSIMILAR MATERIAL CONNECTIONS

Aluminum-Copper Connections

Achieve high-strength bonding of dissimilar materials such as aluminum and copper.

Enable composite structural forms such as local heightening, strip heightening, and plate heightening.

FSW DISSIMILAR MATERIAL BONDING

06 FSW DISSIMILAR MATERIAL BONDING

Reliable aluminum-copper interface performance

Metallographic structure

The joint structure is intact and free of defects;

The intermetallic compound layer has not accumulated at the aluminum-copper interface;

The aluminum-copper intermetallic compounds are dispersed throughout the weld microstructure, acting as a second-phase dispersion strengthening agent.

FSW DISSIMILAR MATERIAL BONDING

07 FSW DISSIMILAR MATERIAL BONDING

Reliable aluminum-copper interface performance

Tensile Properties

The average joint strength was 103.9 MPa, reaching 85.6% of the tensile strength of the 1-series aluminum base material.

Shrinkage occurred during the tensile process, and all fractures occurred in the heat-affected zone on the aluminum alloy side.

SOLVING THE CASE

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NEV Battery Tray Solution

Project Background: New energy bus battery trays need to withstand complex loads while meeting lightweight and high sealing requirements. Traditional welding processes struggle to balance both.

Semiconductor Equipment Copper Backplane Solution

Project Background: Semiconductor equipment has extremely high requirements for copper alloy component welding quality. Traditional welding is prone to defects that affect equipment stability and lifespan.

Supercomputing Heat Dissipation Module Solution

Project Background: Supercomputing equipment has extremely high power density, requiring a heat dissipation module with three-material welding, which is technically challenging.

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