1060 aluminum alloy and T2 copper with the thickness of 3 mm are joined by means of laser penetration-brazing (LPB) with a Yb:YAG disc laser. The mechanical properties of the joint are measured by microhardness and tensile tests. The microhardness of the weld is higher than that of aluminum and copper base metals, respectively, due to the formation of fine grains and hard Al2Cu and Al2Cu3 intermetallic compounds. The results of the tensile tests for welded samples are variational under the same parameters. The maximum failure strength for tensile test is 100.6 MPa. The failure occurres at aluminum side. The minimum failure strength is 94.5 MPa. The failure happens close to the interface due to the hardness gradient and brittle intermetallic compounds.