Decarburization and Your Precision Machine Shop
Decarburization is a clue that can help us pinpoint when in the steel making and processing history that defect was created.
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Central Bursts, Chevroning in Cold Drawn and Extruded Steels
Central bursting in cold worked steels are a very rare occurrence. Central bursts or chevrons are the result of the steel failing by shear as it’s strength is exceeded during the cold working process.
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Scabs On Rolled Steel Products
Scabs are irregularly shaped, flattened protrusions caused by splash, boiling or other problems from teeming, casting, or conditioning.They are commonly mistaken for Slivers shearing and rolled in scale.
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Slivers On Rolled Steel Products
Slivers are loose or torn segments of steel that have been rolled into the surface of the bar. they are often confused with laps, scabs, and mill shearing.
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Laps On Rolled Steel Products
A lap is a ‘rolled over condition in a bar where a sharp over fill or fin has been formed and subsequently rolled back into the bar’s surface.’