The　wetting　of　Cu-19Ni-5Al　alloy　on　Ni-coated　WC-8Co　substrates　with　different　coating　thicknesses　was　investigated,　and　the　brazing　of　Ni-coated　WC-8Co　to　SAE1045　steel　was　performed　by　using　the　Cu-19Ni-5Al　alloy　as　the　filler　metal.　All　the　Cu-19Ni-5Al/Ni-coated　WC-8Co　systems　present　excellent　wettability　with　a　final　contact　angle　of　similar　to　10　degrees.　The　thicknesses　of　the　beta　+　gamma　phase　enriched　with　Co,　Ni,　and　Al　at　the　two　joint　interfaces　increase　and　decrease　with　the　Ni　coating　thickness,　brazing　temperature,　and　holding　time　increasing,　respectively.　The　joint　shear　strength　increases　first　and　then　decreases　with　the　increase　of　Ni　coating　thickness,　brazing　temperature,　or　holding　time.　The　maximum　joint　shear　strength　of　similar　to　328　MPa　is　obtained　while　Ni　plating　for　90　min　and　brazing　at　1210　degrees　C　x　5　min.