Casting

1. Mohammed A. Alawad

2. “ It is defined as something that has been cast in a mold; an object formed
by the solidification of a fluid that has been cast into a refractory mould”
— Kenneth J. Anusavice. Philip’s Science of Dental Material. 11th Edition. St. Louis, Missouri. 2003.

3. “ A manufacturing process in which a liquid material is usually poured into
a mold, which contains a of the desired shape, and then
allowed to .
The solidified part is also known as a casting, which is ejected or broken out
of the mold to complete the process.”
— Degarmo, E. Paul; et al (2003), Materials and Processes in Manufacturing (9th ed.)

4. Locate
the mold
?

5. HIGH NOBLE ALLOYS BASE ALLOYSNOBLE ALLOYS

6. HIGH NOBLE ALLOYS
a) – alloy.
b) – – alloy
c) – – alloy
+

7. NOBLE ALLOYS
Elements with a good metallic surface that retain their surface in dry air.
Their resistance to oxidation, tarnish, and corrosion during heating,
casting, and soldering is very good.
Use in the mouth is very good.

8. NOBLE ALLOYS:-
Gold
-(the densest metal on earth)!

9. BASE ALLOYS
Nickel
CobaltChromium