In this study, it is aimed to produce AA7075 materials by mechanical alloying and sintering methods. Besides, the main purpose of this study is to investigate the effect of different ball milling times on the powder and sintered samples. The milled powders and sintered samples were thoroughly investigated by different characterization techniques. Initially, AA7075 alloy powders were milled by planetary high-energy ball milling device with different milling times. While the initial particle size of commercial grade AA7075 powders were calculated 46 µm, the average particle size of the 8 hours milled powders measured as 22 μm. The effect of different milling times (i.e., 0.5, 1, 2, 4 and 8 hours) on the morphological properties of AA7075 milled powders were investigated by scanning electron microscopy (SEM) and particle size analyses. In addition, X-ray powder diffractometry (XRD) was performed to observe the differences in the crystallographic properties of the milled powders. After the powder preparation and characterization stages, in order to determine the effect of the different phases of milling process on the mechanical properties of the produced AA 7075 samples, these milled powders were consolidated via cold press followed by sintering process. According to experimental outcomes, it was observed that when the milling time reached the final stage (8 hours), the relative density of bulk AA7075 decreased by 7%, in contrast the hardness increased by 130% as compared to pure AA7075 sample fabricated by same producing history.