The effect of milling and hot compaction processes on the microstructural and physical properties of recycled 2017 aluminium alloy powders

Analysis of thermo-elastic and physical properties of recycled 2017 Aluminium Alloy/Gp composites: thermal management application

“…Care was taken to ensure that the powder was properly dispersed in the die cavity. Thereafter, hot press process was executed on a hydrostatic press 'JOOS' of 1000 kN maximal pressing force (figure 2) to produce compacted powder at 200°C and under a constant pressure of 150 MPa for 2 h. According to the results presented previously by Bhouri and Mzali [32], using these parameters allows the formation of denser structure of composites.…”

“…In order to reduce excessive cold welding of the particles, 3 ml of methanol was affixed to powder. In our previous paper [32], the optimum milling time (20 h) has been approved to have a finer powder (figure 1(b)). Figure 1(c) displays a typical scanning electron microscope (SEM) image of the obtained 2017 Aluminium alloy after recycling and milling step [32] used in this work with an average particle size of 90 μm.…”

“…In our previous paper [32], the optimum milling time (20 h) has been approved to have a finer powder (figure 1(b)). Figure 1(c) displays a typical scanning electron microscope (SEM) image of the obtained 2017 Aluminium alloy after recycling and milling step [32] used in this work with an average particle size of 90 μm. Timrex (SFG75) powder supplied by Timcal Graphite & Carbon (figure 1(d)) with spherical shape and an average size of 75 μm [33,34] were used as the reinforcement component to produce composites.…”

“…In order to produce a denser structure at the best condition, it is necessary to study the effect of powder metallurgy parameters on the microstructure and physico-mechanical properties. This was the aim of our previous study [32] where the recycling of 2017 Aluminium alloy using this economical method has been treated for the first time.…”

Producing Metal Powder from Machining Chips Using Ball Milling Process: A Review

“…However, further studies on the corrosion resistance and tribological test of samples are required. [192] studied how ball mills and hot compaction impact the microstructure and physical characteristics of recycled aluminum alloy (2017) powders. The powdered recycled aluminum alloy powder was milled for different time periods before hot compaction at varying temperatures and pressures.…”