THE PRINCIPLE AND CHARACTERISTICS OF FSW TECHNOLOGY
Friction Stir Welding (FSW) is a solid-state joining technology. It was invented by the British Welding Research Institute in 1991 and is regarded as the most revolutionary welding technology of the 20th century.
The rotating stir head penetrates the workpiece and moves along the welding direction. The contact area between the stir head and the workpiece generates heat through friction, causing the metal around it to become plastic and soft. The softened metal is continuously filled into the cavity formed behind the stir pin under the rotation of the stir head. Through the action of friction and extrusion, solid-state connection is achieved.
Widely used for 2D and 3D connections of the same or different materials such as aluminum, copper, magnesium, titanium, and steel.
Low deformation
The material does not melt, and the heat input is low, resulting in minimal deformation.
Low deformation
Not affected by environmental temperature and humidity.
Excellent performance
A dense "forged structure" (equiaxed crystals) is formed in the weld nugget area.
Environmentally friendly and safe
The welding process has no arc light, smoke, or spatter.
Weld quality
High connection strength + Resistance to high pressure + High sealing performance
MAIN FSW PROCESSES

Bobbin Tool FSW

Stationary Shoulder FSW

3D FSW

Refill FSSW

Variable Thickness FSW

Dissimilar Material FSW
LIGHTWEIGHT STRUCTURE
It is the first and only intelligent manufacturing production line in China that has achieved mass production of hydrogen fuel cell stack boxes by friction stir welding and butt welding
Advantages of structural welding
It can replace machined parts and reduce the development cost before batch production
Reduce the welding cost of dissimilar structures
The mechanical properties and sealing effect meet the requirements
Circular welding products
Weld two different materials in a circumferential seam to reduce material costs and manufacturing costs
Box-type welded products
It is made by welding five single boards together and has the advantages of short development
cycle, strong iterability and high development cost performance
Shell products
Simple structure reliable quality with a cumulative shipment of 150,000 pieces and zero leakage
RELIABLE FRICTION STIR WELDING SOLUTIONS FOR GLOBAL HIGH-TECH INDUSTRIES
We provide high-strength, well-sealed core components for new energy vehicles that meet global automotive standards. Schedule a rapid technical consultation now.
Build a highly cohesive team of thermal management, special welding and precision manufacturing
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+86 177 1265 6888 (WhatsApp)
+86 137 7167 8566 (WhatsApp)
Peter Fu peter@dyf-sz.cn
Eva Zhou deyanfumachinery@gmail.com
Building 3, No. 28 Xinchang Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province