Study of safe factor of sintered aluminium alloys using extrusion process

: Powder metallurgy manufacturing route has wide industrial applications due
to economic advantages. Aluminium is remarkable for the metal's low density and for its
ability to resist corrosion due to the phenomenon of passivation and also it is known that
the structural components of aluminium and its alloys are vital to the aerospace industry
and are important in other areas of transportation and structural materials. So, the most
useful compound of aluminium, at least on a weight basis, is the oxides and sulfates.
Therefore the selected composition of powder mix is compacted, with the resultant shapes
heated or "sintered" in a controlled atmosphere furnace to bond the particles and then
extruded. The tensile specimens which are prepared from extrudates are tested. The high
precision formation capability of PM generates components with near net shape, intricate
features and good dimensional precision pieces. The results were good at all the stages
and this present study reveals the estimation of safe factor with respect to working stress
and ultimate tensile stress.