Aluminium extrusion die cleaning doesn't end with the caustic dip...
Aluminium extrusion die cleaning doesn't end with the caustic dip...
Every extrusion die shop knows the cycle. Caustic soak, shot blast or manual polish, back to the press. It works, until it doesn't.
The caustic dip removes bulk aluminium efficiently. What it leaves behind, fine residual particles, carbonisation, and heat discolouration on the bearing surface, is precisely what makes accurate die inspection difficult. If your inspection is compromised, everything downstream is compromised before it starts.
Wet blasting removes what shot blasting cannot reach. A calibrated slurry of abrasive media suspended in water navigates complex port geometries uniformly, flushes caustic trace from recesses, and leaves the bearing surface clean enough to inspect with confidence, without altering die geometry in the process.
Fewer faults missed at inspection. Fewer dies pulled mid-run. Die corrector time spent on correction, not preparation.
Learn more about the applications and advantages of cleaning extrusion dies by wet blasting.