Chapter 7 Casting Processes

Question 1

What are the mould materials for Sand casting?

Answer 1

sand, clay and water

Question 2

what are the mould materials for CO2 process?

Answer 2

sand with solution of sodium silicate

Question 3

What are metals to be cast for sand casting?

Answer 3

high melting point metals e.g. cast iron & aluminium

Question 4

what is the surface finishing of sand casting?

Answer 4

poor

Question 5

what is the surface finishing for CO2 process?

Answer 5

good

Question 6

What are the typical applications for sand casting?

Answer 6

Machine bed & pump casing

Question 7

What are the typical applications for the CO2 process?

Answer 7

Core

Question 8

What are the mould materials for investment casting?

Answer 8

refractory

Question 9

What are the mould materials for die casting?

Answer 9

Alloy steel

Question 10

What are the metals to be cast for investment casing?

Answer 10

unlimited choice of metals e.g. stainless steel, superalloys

Question 11

What are the metals to be cast for die casting?

Answer 11

low melting point metals e.g. Zn, Al, Mg and Cu

Question 12

What is the surface finishing for Die casting?

Answer 12

Excellent

Question 13

What are the typical applications for investment casting?

Answer 13

implant, turbine blades and gold jewellery