Atlas of Casting Defects
Negative
Appearance Missing features or low wall thickness with linear serrations
Near gates or on same surface as gates
Abrasive grinding belt or wheel continues grinding into casting after removing the gate
| Area | Possible Cause | Potential Correction |
|---|---|---|
| Other | Grind depth set too deep |
Ensure grinding depth set correctly on automatic grinder |
| Other | Part improperly loaded |
Mistake proof part loading on the grind fixture |
| Other | Residual ceramic prevents proper fixture loading |
Improve ceramic removal method |
| Other | Incorrect belt width |
The contact wheel and grinding belt should be sized according to the gate width |
| Other | Snagging from loose grip in operator’s hand |
Hold casting tight in hand when approaching belt or disc |
| Other | Excess Snagging from inability to see grind area interface |
Change view angle |
| Other | Incorrect grit size on belt |
Ensure belt grit size before grinding |