Sheetcam Hot Crack //free\\
If the sheet is clamped too rigidly or the part geometry prevents natural expansion and contraction, stress accumulates directly in the weld/cut zone.
A refers to a crack that appears in a workpiece immediately after cutting, usually near the lead-in, a sharp corner, or the point where the torch finishes the cut. These are not mechanical shear cracks; they are thermal stress fractures .
Slowing cooling speeds and keeping the material in a brittle temperature range for too long. Impurities: sheetcam hot crack
When a plasma arc or laser beam passes through a metal sheet: The immediate cutting edge reaches melting temperatures.
A hot crack is one of the most frustrating defects in CNC plasma cutting. It leaves a deep, unsightly melted crater at the exact point where the torch finishes cutting a shape. This defect ruins the aesthetic appeal of your parts and can compromise their structural integrity. If the sheet is clamped too rigidly or
SheetCam is a widely used software program designed for computer numerical control (CNC) plasma cutting. It enables users to create, edit, and send G-code files to CNC machines, allowing for precise cutting of various materials, including metal sheets. However, like any complex software, SheetCam can encounter issues, and one such problem is the "Hot Crack" error.
The start and end points of a cut experience erratic thermal cycles, making them prime zones for hot crack initiation. How SheetCam Features Can Prevent Hot Cracking Slowing cooling speeds and keeping the material in
Improperly configured CAM strategies can lead to localized overheating, rapid quenching, and excessive mechanical stress—the exact ingredients required for hot cracking. This article explores the root causes of hot cracking in thermal cutting, how SheetCam settings impact this phenomenon, and actionable strategies to eliminate the defect from your production line. What is Hot Cracking in Thermal Cutting?
The where the cracks are forming (e.g., at the pierce point, on corners, or along straight lines). Share public link
Avoid cutting adjacent parts sequentially if they share a narrow web of metal. Bounce the torch across different areas of the sheet using SheetCam's manual or automated ordering tools to allow hot zones time to cool down. Hardware and Metallurgical Countermeasures

