Can the die laser welding machine weld copper and aluminum?
The copper aluminum welding is to connect the copper material and the aluminum material through the welding process. Because copper and aluminum are easily oxidized metals, the welding of copper and aluminum has always been an international welding problem. Depends on the actual production requirements.1, the traditional method used to hang tin and tin melting welding of copper and aluminum, the molding method is not good, not very good strength, due to the low melting point of tin and not in welding under high temperature, so this method is only suitable for use under the condition of low temperature small workpiece (only suitable for welding and multi strand copper wire small size aluminum enameled wire), it is difficult to apply to other products.2, using the method of welding copper aluminum melting welding, friction welding, cold welding, explosive welding, electron beam welding, ultrasonic welding, welding, welding joint brittle out large, easy to crack and easy to weld porosity, welding up will inevitably lead to fracture, fracture occurred after may make the conductive circuit, make the pipe leaked, so often fail to effect the actual production requirements.3, using brazing (usually with high frequency brazing flame brazing and brazing furnace etc.) the copper and aluminum welded together by the brazing solder as medium to copper and aluminum welding together (actually react and solder by capillary infiltration of copper and aluminum materials in the molecular structure, forming good) the welding joint properties and electrical conductivity, good corrosion resistance and tensile shear, is commonly used in copper and aluminum welding method
Now the laser equipment has already been able to weld copper and aluminum directly. It is not an ordinary laser machine on the market
Depends on what welding method:Any method of welding, welding copper and aluminum are not, so laser welding is not good! Because the welding time will produce copper and aluminum compounds, mechanical properties are poor.There are several methods for welding copper and aluminum: friction welding, diffusion welding and brazing.If laser brazing is used, copper and aluminum can be soldered.
