Chemical Engineering - Chemical Engineering Basics - Discussion
Discussion Forum : Chemical Engineering Basics - Section 1 (Q.No. 2)
2.
The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.
Discussion:
24 comments Page 2 of 3.
May Jane said:
9 years ago
Aluminum oxide is the most common abrasive used in grinding wheels. It is usually the abrasive chosen for grinding carbon steel, alloy steel, high-speed steel, annealed malleable iron, wrought iron, and bronzes and similar metals while Silicon carbide is an abrasive used for grinding gray iron, chilled iron, brass, soft bronze and aluminum, as well as stone, rubber and other non-ferrous materials.
May Jane said:
9 years ago
Aluminum oxide is the most common abrasive used in grinding wheels. It is usually the abrasive chosen for grinding carbon steel, alloy steel, high-speed steel, annealed malleable iron, wrought iron, and bronzes and similar metals while Silicon carbide is an abrasive used for grinding gray iron, chilled iron, brass, soft bronze and aluminum, as well as stone, rubber and other non-ferrous materials.
Syed amanullah said:
9 years ago
@Kaushik. al203 is wrong.
So please explain this answer.
So please explain this answer.
Subodh K.Singh said:
9 years ago
Oxide of metals have tendency of alkalinity but some do not follow. Aluminium is one of those. Aluminium oxide is neutral compound and this is neither acidic nor alkaline. It does not react with cutting tools. This may be one of the reason.
Kaushik said:
10 years ago
May be al203 is cheaper.
JAYANTA MONDAL said:
1 decade ago
Silicon carbide or aluminium oxide are property is important for cutting tools.
Kenneth said:
1 decade ago
Silicon carbide or aluminum oxide are both used. But, when cost and readily available material is needed Aluminium oxide is used.
Secret gal said:
1 decade ago
Then whats the concept behind using silicon coating in turbine blades?
Swap said:
1 decade ago
Aluminium oxide is resistance to corrosion and its a hard metal too.
Rumela said:
1 decade ago
Silicon carbide has a greater impact-resistance than aluminium oxide. Then why can't we use SiC?
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