22-05-2013, 04:09 PM
Report on Defects in Casting
Defects in Casting.docx (Size: 305.48 KB / Downloads: 34)
Definition of Casting:-
Metal Casting is the process of pouring a metal in a liquid form into mold and allowed to solidified.
Definition & Concepts of Defects in Casting:-
Many defects occur in casting if molding sand is not in proper composition.
Any carelessness a may result into casting defects.
Hard spot:
Some part of casting become solid very fast and surface become hard is known as hard spot.
Causes:- Bad casting design.
Improper metal composition.
Remedy:- Proper design should be made so metal solidify in
Same time.
Proper metal composition should be made.
Lift & shift:
Some part of casting gets deform is known as lift and shift
Causes:- Improper alignment of the pattern parts.
Improper strength of mould sand.
Improper clamping of mould box.
Remedies:- By aligning the mould box .
Proper strength of core and mould.
Proper clamping of mould box.