Production processes of cellular metallic material.

1. Sagar Institute of Science Technology &
Engineering (SISTec-E),Bhopal
PRODUCTION METHOD FOR
CELLULAR METALLIC FOAMS
By
Prof. Raghvendra khedle
Asst.Prof.Sonika Sahu

2. Metal foam
Powdered metalLiquid metalMetal vapour
Direct foaming with
gas
Sintering of hollow spheres
Direct foaming with
blowing
agent
Gasars
Powder compact melting
Casting
Spray forming
Vapour
deposition
Gas entrapment
Slurry forming
Pressing around
fillers
Sintering of powders
or fibers
Reaction sintering
Overview of the various ‘families’ of production methods for cellular metallic materials

3. Melting the Aluminium matrix metal
Addition of reinforcing particles to melt (5-
20% SiC or Al2o3)
Injection of gas into the melt using a rotating impeller
Pulling off the floating foam from the surface of the melt.
(Continuously, sheet material)
Influencing the pore structure by gas pressure, impeller
rotation speed and other parameters
Gas Injection method

4. Cymat production route