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The invention, development and industrialization of a new industrial manufacturing technology generally require a long process of decades or even centuries, as well as welding techniques, such as ordinary arc welding, argon arc welding, electron beam welding, laser welding, and ordinary Friction welding, etc. However, friction stir welding differs. In 1991, as the world's material and joining technology center, The Welding Institute-TWI, invented Friction Stir Welding (FSW), which was invented and patented. The history of successful application to industrial products (1996) was the shortest of any welding method. The invention of friction stir welding is undoubtedly one of the most revolutionary milestones in the history of welding technology development and has contributed to the advancement of world industrial manufacturing technology.
In 1996, Norwegian MARINE Company officially adopted friction stir welding technology in the manufacture of aluminum alloy vessels, from which friction stir welding has taken the first step in industrial application. In the field of shipbuilding, friction stir welding has been successfully applied to the assembly line of structural parts such as decks and side plates of aluminum alloy fast ships. In the field of railway manufacturing, Japan HITACHI first applied the friction stir welding technology to the rapid and low-cost manufacturing of train bodies in 1997, and successfully realized the industrial manufacture of aluminum alloy profiles of large-wall panels. In 2004, the European Railways Corporation has also extensively used friction stir welding on passenger and cargo trains. In the field of aerospace manufacturing, friction stir welding has successfully replaced the fusion welding to achieve the manufacture of high-strength aluminum alloy fuel tanks such as large-scale launch vehicles and space shuttles. Boeing's DELTA II and IV rockets have all been realized. Friction stir welding was manufactured and successfully launched into space for the first time in 1999. In 2000, the world's automotive industry, such as TOWER, used friction stir welding to achieve the welding of automotive suspension brackets, light alloy wheels, bumper bumpers, engine mounting brackets, and aluminum alloy bodies. In August 2002, U.S. lunar eclipse airlines developed a fully friction stir welded aircraft using FSW technology and successfully tested for the first time.
In 1993, friction stir welding received worldwide intellectual property protection. In 1995, the British Welding Institute applied for a patent for invention in the friction stir welding technology in China. As of September 2004, 130 companies and organizations worldwide have obtained non-exclusive patent licenses for friction stir welding authorized by the British Welding Institute, including companies, universities and research institutions in various industries; in China (including Taiwan, Hong Kong and Macau) 24 universities, research institutes and enterprises have obtained the patent for friction stir welding of the agent of China Friction Stir Welding Center. Worldwide, from Europe, Britain, France, Germany, Norway, as well as the United States, Canada, Asia, Japan, etc., friction stir welding has become the preferred connection technology for light alloy materials such as aluminum alloys and magnesium alloys in industrial manufacturing.
In China, although technicians were trying to explore the basis and mechanism of friction stir welding technology since 1996, by April 18, 2002, Beijing Aviation Manufacturing Engineering Research Institute and British Welding Research Institute signed friction stir welding. The establishment of the Patent Licensing Agreement and the China Friction Stir Welding Center (Beijing Safford Technology Co., Ltd.) marked the official launch of the frictional welding technology in China's soft landing and development. Since then, the history of Chinese welding has opened a new chapter. .
With the development and application of friction stir welding technology, the demand for friction stir welding equipment has gradually increased. There are nearly 15 specialized friction stir welding equipment manufacturers worldwide, including Beijing Safford technology. Ltd. (China Friction Stir Welding Center). By the end of 2006, the company had designed and developed 20 specialized friction stir welding equipment for domestic customers. Friction stir welding equipment has also evolved from the original milling machine modification, specialized machine tool welding equipment to CNC, flexible, robotics and other technologies.
Worldwide, friction stir welding has developed rapidly as an industrial technology in the fields of aerospace, automobiles and aircraft. In China, the development and promotion of friction stir welding technology has also begun to take shape, especially in China's shipbuilding industry. Friction stir welding has been applied in large-scale aluminum alloy panel siding. In 2006, the company was in Beijing has established the first professional friction stir welding production and processing workshop in China, which provides high-quality military and civilian wide-width (12m×5m) friction stir welded profiles for domestic major shipbuilding plants, including ships. Deck, outer wall side panels and interior coamings and partitions. In China, the manufacture of friction stir welding ships has sailed.