Ningbo Cheeven New Materials Technology Co., Ltd.
Ningbo Cheeven New Materials Technology Co., Ltd.

The Development History of Friction Stir Processing and Friction Stir Welding

Friction stir processing is a processing method evolved from friction stir welding, also known as friction stir treatment.

The basic principle is that the material to be processed undergoes severe plastic deformation, mixing and crushing through the strong stirring action of the stirring head, so as to realize the densification, homogenization and refinement of the microstructure. Friction stir machining can eliminate defects such as shrinkage porosity and shrinkage cavities in cast products, and can also refine grains, thereby improving material properties.

Friction stir welding technology was invented by the British Welding Research Institute in 1991, and applied for an invention patent in the UK the following year, and applied for patent protection in countries around the world. Since the patent protection and publication, friction stir welding technology has been widely used first and mainly in the field of light metal structures such as aluminum alloys and magnesium alloys and has also achieved certain development in the field of high melting point materials. 

In addition to the advantages of ordinary friction welding technology, friction stir welding can also connect various joint forms and different welding positions. Norway has established the world's first commercial friction stir welding equipment, which can weld Al ship plates with a thickness of 3-15 mm and a size of 6x16; It is used to weld certain rocket components; McDonnell Douglas also uses this technique to make the propellant tanks for the Delta launch vehicle. Friction stir welding has spawned many manufacturers, such as battery tray for wheel arch manufacturers, water jacket electric motor suppliers. 

Nowadays, FSW friction stir welding products include alloy battery traywater cooling solar panels, water cooling platebattery cold plate, and so on. 

Our company is one of the pioneers in this field. As a FSW products supplier, we own EV battery tray FSW, and produces high-quality water cooled motor housing and various FSW products. We have been working so hard in this field.

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