No other welding consumables such as welding rods, wires, fluxes and shielding gases are required in the friction stir welding process, the only consumption is the welding stir head.
The temperature during FSW friction stir welding is relatively low, so the residual stress or deformation of the structure after welding is also much smaller than in fusion welding. Particularly when fusion welding thin plates of Al alloys, the out-of-plane deformation of the structure is very pronounced, which is troublesome and increases the manufacturing cost of the structure, whether using deformation-free welding techniques or post-weld cold or hot straightening techniques.
The stir friction welding process has been used successfully in the joining of non-ferrous metals, but is limited to the welding of structurally simple elements such as flat structures or cylindrical structures due to the limitations of the welding method and the need for the workpiece to be well supported or lined during the welding process. In principle, stir friction welding can be carried out in a variety of positions, such as flat welding, vertical welding, back welding and top welding; can be completed in a variety of forms of welded joints, such as butt, fillet and lap joints, and even thickness changes in the structure and the connection of multi-layer materials, but also the welding of dissimilar metal materials.
In the power electronics heat dissipation industry, water cooling plate heat dissipation is gaining popularity due to the ongoing pursuit of high reliability and cost efficiency. Traditional vacuum brazing technology, while effective, presents certain drawbacks for specific industries and product structures. These limitations have led to the adoption of water-cooled plates utilizing the friction stir welding (FSW) process. The FSW process offers significant advantages, including greater freedom in waterway design and enhanced sealing reliability. This flexibility allows for the creation of more efficient and customized cooling solutions tailored to specific applications. Additionally, the use of hard anodized surface treatments further improves the durability and performance of the cooling plates.
As a leading water cooling plate supplier, we leverage the benefits of friction stir welding to deliver superior heat dissipation solutions. Our FSW water cooling plates are designed to meet the stringent demands of modern power electronics, providing reliable and efficient thermal management. By combining advanced manufacturing techniques with rigorous quality control, we ensure that our products not only meet but exceed industry standards.
1, No fusion welding porosity defects in the weld, no elemental burnout, no thermal cracking, thus to ensure high reliability without leakage.
2. No solidification of elements and tissue segregation. Microstructure is isotropic in the weld area, no weld residual height.
3. The welding process is simple and belongs to the no flux type welding. No need to fill the wire, no need to open the bevel, no need to pre-weld treatment, no need to protect the gas.
4. The process is environmentally friendly, no light and gas pollution.
5. Small shrinkage and deformation in the weld area.
6. Due to the popularity of equipment, stir friction welding cost will be further reduced, become a common welding technology.
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