Tutorial for Lecture 5: Casting Processes
QUESTIONS
Moodle XML: Some questions in 10107 Processing
1. Define all the glossary terms.
2. List 2 advantages that casting offers over other manufacturing processes.
3. List in a table the advantages/disadvantages of casting processes: Sand,
investment, gravity die and high pressure die. Include melting point, accuracy,
setup costs, production costs, design limitations.
4. Sand casting pattern and sand mould costs $1900 and each part costs $50 in
labour. Die casting mould (die) costs $25000 and per part is $10. Calculate the
break-even quantity where die-casting becomes cheaper than sand casting.
5. Explain the following casting terms: Flash, porosity, feeder, runner, draft, ejectors,
cores.
Glossary
Binders
Break Even
Charge
Cope
Core
Draft
Drag
Feeder
Fettling
Flash
Gas Porosity
Gate
Green Sand
Impurity
Inclusion
Investment Casting
Ladle
Lost Foam
Parting Line
Pattern
Riser
Sand Casting
Shrinkage
Shrink Hole
Sink Marks
Slag.
Sprue
Vacuum Casting
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