The Mechanical Aluminium Graphite Stir Cast Composite's Ability to Improve Stirrer Speed

Adjusting the stirrer speed and testing their mechanical qualities, a metal matrix composite
with lubricating qualities can be created using a stir casting process. The casting machine has
been activated. The temperature of the furnace is set to 750°C. The temperature is preheated
to 150°C. The temperature of the pathway is fixed at 550°C. They let the furnace heat up. The
aluminum silicon alloy is thrown into the furnace after it has reached 650°C. The melting
point of the alloy is between 700 and 750°C. After being preheated, the finely ground
graphite powder is allowed to thoroughly combine with the molten metal. To improve the
wettability, graphite is preheated and used as reinforcement. To combine the alloy, a stainless-
steel stirrer is utilized.First the stirrer is rotated at 250 rpm once both the alloy and
reinforcement gets mixed up into a single red hot molt which is poured. The molt now leaves
from the bottom of the furnace through the pathway from the machine. Pathway is
maintained at 550°C to avoid the solidification of molt in the path. The pathway carries the
molt to a die where the die is split up and the mould is taken out from the die. The die,
furnace and pathway is coated with the non-stick paste to avoid the sticking of alloy in the
walls. The same process is repeated for the stirrer speed of 450rpm, 650rpm, 850rpm and
their mechanical properties are compared with each other to find the optimal stirrer speed

Keywords: Alminium Graphite, Metal Matrix Composite, Stir Casting, Properties and
Behaviour, Stirrer speed.