Casting

Question 1

What is casting?

Answer 1

A manufacturing process where material is poured into a mold to create a specific shape.

Casting can involve various materials such as metal, plastic, or plaster.

Question 2

What materials are commonly used in casting?

Answer 2

Sand, investment, die, resin, plaster.

Each material serves a specific purpose in the casting process.

Question 3

What is a characteristic of the investment casting process?

Answer 3

Uses a wax model that melts when in contact with molten material.

This method is known for producing high-quality castings.

Question 4

What is a key feature of gravity die casting?

Answer 4

Utilizes locating pins, runners, and risers for thicker molds and mass production.

Commonly used for creating alloy wheels.

Question 5

What is pressure die casting?

Answer 5

Material is forced into the die, making it a fast process suitable for mass production.

Often used for items like doorknobs.

Question 6

What is the labor intensity of casting?

Answer 6

Labour intensive and often suitable for one-off productions.

This can vary depending on the type of casting process used.

Question 7

What is the purpose of sprue pins in the casting process?

Answer 7

To create a path for the molten material to flow into the mold.

Sprue pins help in forming the necessary channels for casting.

Question 8

Fill in the blank: The process of packing sand around a pattern is called _______.

Answer 8

drag packing

Question 9

What are the steps involved in the casting process?

Answer 9

1. Drag packed around pattern
2. Drag turned over
3. Cope placed on top
4. Sprue pins positioned
5. Vents added
6. Poured into riser until it comes out.

These steps outline a basic casting procedure.

Question 10

True or False: Investment casting is primarily used for producing low-quality items.

Answer 10

False

Investment casting is known for its high-quality output.