DefinePK

Abstract

Recently Aluminium alloy, exclusively AA 6061 is used in the automotive, aircraft, marine and construction industries due to it is excellent properties such as noncorrosive, strength to weight ratio and rewards over than steel in ductility. Four groups of particle size were chosen (25, 63, 100, mix) µm. Each group has compacted by three specimens for various of compacted pressure (5, 7, 9) tons, the holding time and sintering temperature were constant (20) min, (552) oC respectively. The result of mechanical properties shows that the compression strength increase with increasing compaction pressure for all groups and the various of particle size (mix) will be given the best compression strength (134Mpa) due to it will be given a smaller amount of pores. Whereas the others have less value due to the large amount of pores. Micro-hardness has been getting the large value of the mix group (61HV), while the others have less value. Therefore, it can be concluded that, cold press forging for powder metallurgy could be one of the alternative production process instead of the conventional method that has been carried out melting phase, which contributes to a sustainable manufacturing process technology in the future.