Friction Stir Welding Thermal Solution In inverters of Wind and Solar Energy Field Application
FSW (FrictionStir Welding) is a patent of welding technology invented by The Welding Institute in 1991. Except FSW has advantages of normal welding technology, it can do a variety of connectors and the connection of different welding positions. It was built the first FSW equipment business
in the world in Norway, which can weld the 6×16 AL boat deck with thickness 3—15 mm. To weld some rocket parts, the space and defense
laboratory of Boeing Company brought in FSW in 1998. McDonnell Douglas also brought in FSW to manufacture rocket propellant tanks of Delta.
Walmate has brought in this technology successfully in heat sinks processing field and succeeded in mass production. So far, large
heat sinks with high density fins are required more and more in wind and solar energy inverter industry. It has great limitations in terms of height and width
for soldering, bonding and aluminum extrusion tooling. Fins extrusion with high density is manufactured in FSW to be used in port processing successfully,
which plays a decisive role in reducing the cost of brazing. The pictures below show the productions in FSW