Sheetcam Hot Crack | !!install!!

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.

He saved the job as "HOT_CRACK_FIX.job" and shut down the PC. sheetcam hot crack

Getting started

A hot crack is often a velocity issue. If your machine is set to decelerate abruptly into a corner, the plasma arc continues at full power while the movement slows down. This is the recipe for a blowout. When a torch finishes a closed loop (like

Material selection plays a pivotal role in the susceptibility to hot cracking. Austenitic stainless steels and aluminum alloys are notably more prone to this defect than carbon steels. In stainless steel, for instance, a small amount of delta ferrite is often required in the microstructure to "pin" the grain boundaries and prevent the formation of continuous liquid films. When a fabricator uses SheetCam to cut these sensitive materials, the thermal cycle of the cutting process can alter the phase balance. If the material subsequently undergoes welding without proper procedural controls—such as appropriate filler metal selection or pre-heating—the combination of the cut-edge microstructure and the welding heat can precipitate a hot crack. Getting started A hot crack is often a velocity issue

A hot crack often occurs at the (end of the cut) because the puddle is still liquid. In SheetCam, turn on Overburn .

A proper is the best defense against end-of-cut defects.