The document discusses sand casting, a metal casting process where sand is used as the mold material. Key steps in sand casting include preparing a pattern, using the pattern to form a sand mold with the desired cavity shape, and pouring molten metal into the mold. The solidified metal casting then has the shape of the mold cavity. Sand casting is commonly used to produce parts for automotive, aerospace, industrial, and household applications due to its ability to create complex shapes at a low cost.

2. Foundry
Shri Govindram Seksaria Institute Of Technology And Science
23 Park,Road
Indore
1 4
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2 8
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Submitted To:
Mr. Dhirendu Somani

3. Foundry
Shri Govindram Seksaria Institute Of Technology And Science
23 Park,Road
Indore
1 4
3
2 8
7
6
5 9 10 12
11
Submitted To:
Mr. Dhirendu Somani

4. Foundry
Shri Govindram Seksaria Institute Of Technology And Science
23 Park,Road
Indore
1 4
3
2 8
7
6
5 9 10 12
11
Submitted To:
Mr. Dhirendu Somani

5. Foundry
Shri Govindram Seksaria Institute Of Technology And Science
23 Park,Road
Indore
1 4
3
2 8
7
6
5 9 10 12
11
Submitted To:
Mr. Dhirendu Somani

6. #1 Casting and its Applications
#2 Important Casting Terms
# 3 Steps involved in sand casting
#4 Pattern Making and its Types
#5 Moulding Sand
#6 Casting Defects

9. Take Molten Metal
Molten Cavity
Take Out the
desired material
P
O
U
R
S
O
L
I
D
I
F
Y

10. The solidified object is called
casting and this process is known
as founding.
Mould is made of some heat
resisting material. Hence sand
is most often used for casting
process.

11. Advantages
• Molten metal flows from any section and
hence intricate shapes can be made.
• Tools required are simple and inexpensive.
• Weight reduction in design can be
achieved as it is possible to place required
amount of material where exactly required.
Disadvantages
• Dimensional accuracy and surface finish
are not adequate for the final application.
• Sand casting process is labour intensive.
• Thin walled sections cannot by sand
casting.
• Mould cavity can be used only once.

13. Machine Bed Piston Rings
Mills Wheels
1.
• Cylinders and cylinder heads
for air-cooler IC engines.
2.
• Automobile transmission
parts
• Aerospace and rocket
components,
3.
• Surgical Instruments
• Gears
4.
• Household applications
• Kitchen equipment
• Furniture and fittings

15. Moulding Flask :
It holds the sand mould intact. The top half is called cope and the
bottom half is called drag. Any intermediate flask used in case of 3 piece
moulding is called check.
Pattern :
It is the replica of the final object to be made and is used for preparing
the mould cavity.
Parting Line :
It is the dividing line b/w the two moulding flasks.
Bottom Board :
This is used at the start of the moulding process. Pattern is placed on
it, sand is sprinkled and rammed in the drag.
Moulding Sand :
It is the refractory material used for making moulding cavity. It is a
mixture of silica sand, clay and moisture n appropriate proportions.

16. Core:
This is used for making hollow cavities in the casting.
Pouring basin :
It is a small funnel shaped cavity at the top of the mould into
which the molten metal is poured.
Sprue :
The passage through which the molten metal reaches the mould
cavity and controls the flow of metal into the mould.
Runner:
The passage way in the parting line through which the metal flow
is regulated before it reaches the mould cavity.
In gate:
The actual entry point through which the metal.

17. Riser:
Reservoir of molten metal provided in the casting so that hot
metal can flow back into the mould cavity where there is a
reduction in volume of metal due to solidification.
Chaplets:
They are used to support cores inside the mould cavity to take
care if its own weight and overcome metallostatic forces. They are
made of same material as that of molten metal so that they melt
in the process of casting.
Chills:
These are the metallic objects placed in the chills to increase the
cooling rate of casting to provide uniform cooling rate.

18. Sand casting, also known as sand molded
casting, is a metal casting process characterized
by using sand as the mold material.
The term "sand casting " can also refer to a
casting produced via the sand casting process.
Sand castings are produced in specialized
factories called foundries.