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Home / R&R Academy / Defect Analysis / Other Defects / Shrink

Shrink

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Shrink presents as irregular crevices, fissures or voids (apparent or not); usually on the surface of the casting or in the gating. This defect indicates poor feeding during metal solidification in certain areas. Metal shrinks as it solidifies and the defect occurs if molten metal can’t feed the solidifying area.

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The causes of this defect are evident in the metal and other portions of the process. To cure these causes, R&R recommends taking the following actions.

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