Ohnoseiko Viet Nam co.ltd
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Friction Stir Welding (FSW): A joining solution for dissimilar materials
2026-05-27
In the trend of optimizing weight, performance, and production costs, many industrial products today utilize multi-material structures. However, welding and joining dissimilar materials, especially different series of aluminum and aluminum alloys, always pose a significant challenge for traditional welding methods.
Friction Stir Welding (FSW) is a solid-state welding technology, providing an effective solution for joining dissimilar materials with high stability and reliability.
Challenges in Welding Dissimilar Materials
When using fusion welding methods such as MIG or TIG, welding dissimilar materials often encounters the following issues:
- Difficulty in controlling melting temperatures between materials
- Prone to hot cracking and porosity
- Degradation of mechanical properties in the weld zone
- Unstable weld quality
The above phenomena are prone to occur when high demands are placed on weld stability and mechanical properties in the joint area.
Advantages of Friction Stir Welding (FSW) in Joining Dissimilar Materials
FSW creates joints through friction and solid-state material stirring, without melting the metal. As a result, this technology:
- Minimizes temperature differences between materials
- Reduces the risk of cracks and defects
- Creates durable, stable joints
- Preserves the mechanical properties of each material
FSW is particularly suitable for welding different series of aluminum and aluminum alloys, which are difficult to ensure quality when welded by traditional methods.
Applications in Industrial Manufacturing
Thanks to its ability to join dissimilar materials, Friction Stir Welding (FSW) is widely applied in:
- Engineering aluminum structures
- Heat sinks and cold plates
- Automotive components, electrical – electronic equipment
- Products requiring hermeticity, durability, and long-term stability
Ohnoseiko applies Friction Stir Welding (FSW) technology to weld dissimilar materials during processing, meeting high requirements for product quality and stability. Through strict control of welding conditions and processing, Ohnoseiko delivers highly reliable welds, suitable for industrial manufacturing.
In addition to FSW, Ohnoseiko also excels in high-precision mechanical processing with modern CNC machining systems and a team of engineers trained to Japanese standards, offering comprehensive machining services for a variety of materials.
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Jigs and tools / Industrial machinery / Telecommunication equipment
Main 3 Products
Clamps - Base plate - Shaft
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Machining high-precision single-piece parts with the motto Made in Japan at Vietnam. Processing different materials such as: metal, stainless steel, plastic, with high precision and can handle the sur ...
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