Die Casting

Presentation
Pressure Die Casting

Sam Mande Deepak Ch Veera Pratap

Vamsi raj J

(BUB0912011) (BUB0912016) (BUB0912013) (BUB0912010)

M. Sc. (Engg.) in Engineering Manufacturing and Management
Module Leader : Dr N S Mahesh

M. S. Ramaiah School of Advanced Studies

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History
Casting since about 4000 BC…

Ancient Greece; bronze statue casting 450BC

Iron works in early Europe, e.g. cast iron cannons from England 1543
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M. S. Ramaiah School of Advanced Studies

Introduction
• Die casting is a very commonly used type of permanent molding process in which surface finish and tolerance of die cast parts is good that post-processing can be eliminated in many cases.

• Die casting molds are expensive and require much time to manufacture they are generally called dies. • Die casting is done for high volume with high details, and value added economically priced cast parts.

M. S. Ramaiah School of Advanced Studies

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Die Casting Process

1.Die is ready to start

2.Die is closed, molten metal is filled in the chamber

3.The ram pushes the molten metal in to the die

4.Die cavity is filled with molten metal in few micro seconds
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M. S. Ramaiah School of Advanced Studies

Die Casting Process

5.The metal than solidifies

6.The component casted is ejected from the die

7.The die is cleaned and sprayed with releasing agents

8.Die is ready for the next cycle
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M. S. Ramaiah School of Advanced Studies

Die casting process
• In Die-Casting the metal is injected in to the mold under high pressure 10-210 Mpa (1,450-30500 psi)

• Casting can produce very complex geometry parts with internal cavities and hollow sections. • It is economical, with very little wastage, the extra metals in each casting is melted and reused • The clamping pressure exerted on the die is Rated in “Clamping

tons”
• The capacity varies from 400 tons to 4000 tons.
M. S. Ramaiah School of Advanced Studies

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Die Casting