The　Al-Cu-Mg-Ag-Ti-B　(A205)　alloy　has　gained　success　in　the　additive　manufacturing　domain　due　to　its　good　processibility.　It　is　a　precipitation　hardening　alloy,　and　because　of　this,　its　mechanical　properties　are　greatly　influenced　by　post-processing　treatments.　In　the　present　work,　A205　samples　processed　by　laser　powder　bed　fusion　were　first　solution　treated　and　then　aged　by:　(i)　natural　aging　(NA)　and　(ii)　artificial　aging　(AA).　The　effects　of　different　aging　treatments　on　the　microstructure　and　mechanical　behaviour　were　evaluated.　Both　NA　and　AA　heat　treatments　improved　the　mechanical　behaviour　of　as-built　A205　alloy.　Peak　hardness　was　achieved　in　20　days　(R-.1　137　HV)　for　the　NA　specimen,　whereas　it　took　4　h　at　190　degrees　C　(R-.1　144　HV)　for　the　AA　specimen.　The　average　yield　strength,　ultimate　tensile　strength　and　elongation　to　fracture　for　NA　and　AA　were,　276　MPa,　434　MPa,　20%　and　397　MPa,　463　MPa,　11%,　respectively.　The　structure-property　corelation　was　analysed　by　evaluating　various　strengthening　factors.　Considerable　grain　boundary　strengthening　was　observed　in　both　NA　and　AA　specimen.　The　major　strengthening　contributions　in　the　NA　specimen　were　due　to　the　disordered　Ag　-Mg　co-clusters　and　solid　solution　strengthening　by　Cu.　In　AA　instead,　strengthening　due　to　the　precipitation　of　platetype　ohm　/　theta＇　-　Al　2　Cu　phase　was　dominant.　In　the　end,　failure　mechanisms　in　the　NA　and　AA　conditions　were　also　briefly　discussed.　The　laser　powder　fused　A205　alloy　demonstrated　a　significant　response　to　the　NA　and　possessed　a　high-ductility　and　good-strength　combination.