Sheetcam Hot Extra Quality Crack -

Not all metals are created equal. If you are using SheetCam to cut , your risk of hot cracking is much higher.

Ensure your Tool Library in SheetCam is calibrated to your plasma cutter’s manual. You want the fastest travel speed possible that still maintains a clean cut. The faster the torch moves, the narrower the HAZ and the less time the metal spends in that "danger zone" where cracking occurs. Material Considerations

Setting a small overburn (cutting slightly past the start point) ensures the metal is fully severed, preventing the mechanical "tearing" that happens when a part is forced out of the skeleton. 3. Heat Management through Cut Sequencing sheetcam hot crack

When a torch finishes a closed loop (like a circle), it often leaves a small "divot" or a localized hot spot where the start and end meet. This is a prime location for a crack to propagate.

Hot cracking (also known as solidification cracking) occurs when the metal reaches its melting point and begins to cool. If the metal is under high tension while it is in a "mushy" state (partially solid, partially liquid), the grains of the metal pull apart, creating a fracture. Not all metals are created equal

Ensure your Pierce Delay is perfect. A delay that is too short causes the torch to move before the metal is molten, creating mechanical stress; a delay too long creates a massive heat "puddle." Conclusion

"SheetCam hot crack" issues are usually a combination of metallurgy and machine parameters. By leveraging , Path Rules , and Smart Sequencing , you can minimize the thermal stress placed on your parts. You want the fastest travel speed possible that

Cracks often start at the entry or exit point of a cut because that is where the heat dwells the longest.

If you’ve been running a CNC plasma table for a while, you’ve likely encountered a few "ghosts in the machine"—those frustrating cut quality issues that seem to appear out of nowhere. One of the more technical challenges operators face is .