Class:
HE111 Subject: Mechanical Engineering Technology
Assignment 1: Properties of metals
Due Date: March 31, 2015
1.
Define the following properties
of metals:
a)
Malleability
b)
Tenacity
c)
Ductility
d)
Hardness
e)
Toughness
f)
Brittleness
g)
Elasticity
h)
Machinability
i)
Corrosion resistant
j)
Strength
i.
Compressive
ii.
Tensile
iii.
Shear
2.
Explain the following metal
treatment processes:
a)
Hardening
b)
Case Hardening
c)
Quenching
d)
Tempering
e)
Annealing
f)
Normalizing
g)
Spherodizing
3.
Discuss electroplating and
state its purposes.
4.
Explain the following
processes:
a)
Galvanizing
b)
Copper plating
c)
Terneplating
d)
Anodizing
Assignment 2: Production of Ferrous Metals
Due: April 14, 2015
1. Explain what are ferrous metals.
2. Explain how the following ferrous metals are manufactured:
a) Pig iron
b) Cast iron
c c) Plain Carbon steel
3. Also give the furnaces used in the manufacture of each metal above.
4. What are the types of ores used in the production of pig iron.
5. Give the countries where each type of ore can be found.
6. Give the percentage iron content in each type of ore.
7. Explain how steel is made in the following furnaces:
a) Bessemer converter
b) Open hearth furnace
c) Electric Arc furnace
8. State the carbon content and uses of
a) Low carbon steel
b) High carbon steel
