Sheetcam Hot Crack [2021] Jun 2026

A hot crack—often referred to technically as solidification cracking or thermal stress cracking—occurs when metal expands and contracts rapidly during CNC thermal cutting. While SheetCam itself is software and does not physically cut the metal, specific toolpath configurations, lead-in selections, and speed settings generated within SheetCam directly influence the thermal profile of the cut.

If you are preparing parts for subsequent welding, general metallurgical practices should be combined with your SheetCam setup: SheetCam - Layers and the Contour Tool sheetcam hot crack

When we talk about a hot crack in SheetCam, we are usually referring to . This happens when the cutting torch has to slow down to navigate a sharp corner. As the machine decelerates, the torch dumps more energy into a smaller area for a longer period. This happens when the cutting torch has to