Whether it’s sand casting, investment casting, or steel castings, casting is undeniably one of the most versatile methods of metalworking to this date. It can be used in different industries and is vital to certain sectors such as mining, railroad, and construction. While casting is well-received, it’s not without its faults, and what are these defects? Keep reading to find out!
This type of defect is often associated with irregularities in the dimensions of the forged metal. The cause of this defect can be found during the stabilization of the molten metal. When the core is not stabilized or molded properly during the process, the molten metal will exert pressure lifting the material thus causing the deformity.
This casting defect happens when there is insufficient molten metal poured to fill the mold. Misrun defects are often due to either human error or that the open risers misjudge the quantity of molten metal poured. This type of defect can also be caused by the early freezing of the molten metal during the pour.
Cold shuts happen when either or both the temperature of the mold or of the molten material is too low. Similar to misruns, a part of the molten metal slows down and begins to harden before it flows throughout the mold. This defect can be visible on the surface or on the bottom of the cast.
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