Sheetcam Hot Crack [patched] (2024)

By meticulously adjusting these parameters within SheetCam, you can ensure that your CNC plasma machine, whether paired with Avid CNC or custom setups, produces high-quality parts without the risk of hot cracks.

A hot crack occurs during the solidification phase of the welding or thermal cutting process. As the plasma arc or laser melts the metal, a localized pool of molten material forms. If this pool cools too rapidly, or if the surrounding metal expands and exerts tensile stress on the cooling zone, the material tears apart as it solidifies.

Fighting the "Hot Crack" in SheetCam is not about changing one single variable; it is about a holistic approach to thermal management: sheetcam hot crack

An overcut instructs the torch to continue past the start point by a small distance (typically 1mm to 3mm) before extinguishing. This ensures a clean separation and shifts the cooling stresses into the scrap material. 3. Adjust Feed Rates and Over-burn Parameters

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The Intersection of SheetCam and Thermal Fatigue: An Analysis

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In plasma cutting, moisture or oil in the air lines alters the chemistry of the plasma arc, introducing hydrogen or oxygen that severely worsens cracking. Ensure your air filtration and drying systems are pristine.

To eliminate hot cracking, your primary objective in SheetCam is to minimize the Heat-Affected Zone (HAZ), reduce localized dwell times, and manage thermal stress gradients. Optimize Lead-In and Lead-Out Strategies

SheetCam features a powerful system. You should create a rule that triggers when approaching tight corners or small radii.