Friction stir welding of aluminum

Friction stir welding of aluminum / copper properties of dissimilar metal jointsAl / Cu dissimilar metal joints integrated the advantages of both, has excellent mechanical properties and electrical conductivity, are widely used in electric power, chemical, manufacturingCold and aerospace industry, with a wide range of practical value. Al / Cu solder, since the Al / Cu material physical properties and chemical properties and Hydraulic hose fittings differences, resulting in vigorous oxidation welding, pores, cracks; brazing the aluminum / copper electrode potential difference caused by corrosion of the joint, in the weld appear brittle intermetallic compounds, resulting in joint performance.