July 2008
Intermediate to advanced
357 pages
8h 13m
English
| Casting Defects | Remarks |
|---|---|
| Blows | These are in the form of big gas cavities formed near the casting surface due to pressure of the mould gases. |
| Permeability of the moulding sand needs to be improved to eliminate or minimise this defect. | |
| Scar | It is a variation of blow and usually occurs on the top flat surface of a casting. |
| Blister | It resembles scar but is covered by a thin layer of metal over its certain portion. |
| Scab | It occurs on the flat ... |