Misruns
Misrun is a casting defect in which molten metal fails to completely fill the mold cavity, producing an incomplete or undersized section in the finished part. It is commonly observed in metal casting processes such as sand casting, die casting, and investment casting, but can occur in any molding process that relies on full fill of the cavity.
Causes of misruns include insufficient pouring temperature or metal fluidity, gating systems and runner layouts that
Consequences typically involve compromised structural integrity and dimensional accuracy, leading to rejection or costly rework. Small
Detection and prevention emphasize process control and design for fill. Visual inspection and non-destructive testing can
Remedies for a misrun typically involve scrap or re-melting and re-casting. In some cases, small, superficial