In 1991, a novel and potentially world beating welding method was invented by TWI. The process was duly named friction stir welding (FSW), which is made in the solid phase without melting. Since its invention, the FSW technology has obtained world-wide attention and today it is widely used for joining Aluminium alloy, Magnesium alloy, Copper alloy, Titanium Alloy and many Ferrous materials in Aircraft, Aerospace, Shipbuilding, Rail-products, Automotive, Electronics and Electric Power industries, especially for Aluminium Alloy, FSW is regarded as its best joining choice, the FSW process becomes more and more important for manufacturing. In Shipbuilding industry, in 1996, Marine Corporation together with Maritime Corporation had done lots of researches and technology developments on large wall panel production line by FSW for ship crafts, later then they have succeeded in its engineering application. FSW technology effectively avoids the defects of too long manufacturing cycle, too many personnel and materials needed of riveting as well as the defect of high welding distortion and expensive filter material of arc welding, especially the requirements on environment-friendly technology, high effective usage of material and resource saving becomes more and more urgent, the trends that Aluminium alloys takes place of other materials for manufacturing make the application fields of FSW extended drastically. From Jun. in 2006, China FSW Center Beijing FSW Technology Co., Ltd as the unique FSW solution provider in China territory authorized by TWI has built up a production line for such large wall panel and I-rib plate industrial products, which win high praise for its nice appearance and excellent performance. The mass production of such products in CFSWC makes drastic reduction in costs for shipbuilding industry in China and creates a new era that such products are no longer relying on import. In rail craft industry, Hitachi Ltd has applied FSW in train body with high efficiency low costs since 1997, and the structure of most of rail vehicles in services in Japan including Shinkansen are The "A-train" structure, which is a modular concept that enables lead times to be reduced and makes refurbishment easier with better residual value. At the same time, Bombardier Inc. and Alstom Co. adopted FSW technology for new train body manufacture. Till now, China FSW Center has established cooperative relationship with many locomotive manufacturers and provided them with services of project assessments, FSW technology development, FSW technical supports and FS-Welded products & FSW equipment in the manufacture of sleeper beam, coupler seat, backseat, oil tank, floorboard, wall panel, cooling device, etc. In Aeronautical Industry, Eclipse Aviation Corporation opened its 50,000 square feet friction stir welding production center in Mar., 2004. 70% of traditional riveting and bonding processes were replaced by 263 Friction Stir Welds, thus it made significantly faster manufacture of the six-person two-engine jet aircraft-Eclipse N500. Meanwhile, Airbus Corporation is as the first aircraft manufacturer adopting FSW technology into its large civil aircrafts. It was reported in Speed News on Aug. 26, 2005 that Airbus Corporation would apply FSW technology into the longitudinal joining for the fuselages of its A340-500s and A340-600s replacing traditional riveting. It was said that the design group of A350 reduced the fuselage skin plates for longitudinal joining to 4 pieces instead of 8 for the valuable weight savings and long lifespan as well as the improved component maintainability. Friction stir welding technology is the very joining solution replacing traditional riveting for its high application potentials. China FSW Center Beijing FSW Technology Co., Ltd as the unique professional FSW solution provider in China has already served many customers from Aerospace industry with series of FSW products and Equipment with different usages and structures, which obtained high praises for the high quality and perfect performances. With the development of the company and its production capabilities, more and more experimental technology has been gradually applied into the industrial production. In Aerospace Industry, Friction Stir Welding technology has been widely adopted by many famous foreign Enterprises, like Boeing, Lockheed Martin, Marshall Space Flight Center etc for it provides a feasible solution with high joint performance for Aluminium alloy, especially for those material difficult or unable to be welded by traditional welding technology, like: Al-Cu (2XXX), Al-Zn (7XXX) and Al-Li (8090, 2090 and 2195). Since 1999, Boeing Company has launched rocket with friction stir welded fuel tank, the manufacturing cycle of the tank therefore was reduced by 71%, and human resource savings by 80% for adopting friction stir welding technology. Till Apr., 2008, China FSW Center Beijing FSW Technology Co., Ltd has already designed and manufactured 6 series of large FSW equipment with different structures for plenty of customers from Aircraft Industry, including longitudinal FSW equipment for fuel tank tube, parabola FSW equipment for tank hopper base, longitudinal FSW equipment for heavy section cylinder, circumferential FSW equipment for cylinder, etc whose diameters refer 300mm to 500mm, thicknesses cover 3mm to 40mm. In automotive industry, Mazada as the first corporation applying FSW in car body manufacture replaced resistance spot welding by friction stir spot welding (FSW) in the rear doors and bonnet of its RX-8 sports cars in 2004, which saved energy by 99% and reduced equipment costs by 40%. Later, Ford Co. applied FSW in the Aluminium chassis of its FORD GT sports cars. Tower Co. USA also adopted FSW in automotive components manufacture. China FSW Center has been cooperating with many automotive manufacturers and carrying out long-term research on FSW technology and its improvement in their products, and providing with overall technical supports in the manufacture of automotive wheel, wall panel, crankshaft and other components.