Orange Peel

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Technical Support

Struggling with a specific casting defect or just need general technical support?

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  • Wobbly, yet relatively smooth surface (like a fine sandpaper) that appears on the surface of the casting

  • Indicates that either the casting skin was destroyed by excessive shot blasting or the wax pattern was over-etched, giving it a wobbly surface

Causes of this defect are evident in the metal and other portions of the process; to cure, R&R recommends taking the following actions:

Metal

Variable depth of oxide formation on casting skin.


Reduce atmosphere, use carbon stucco or can molds.





Other

Excessive shot blasting times.


Avoid excessive shot blasting times (knockout).