Superfine-abrasive waterjetting: General Industry Coverage

Water Jet Sweden AB introduced its Fine Abrasive Water Jet (FAWJ) process a decade ago to meet industry’s need to make narrow, high-precision cuts in hard materials. The company developed the technique for a specially designed waterjet machine used to produce microparts.

Recently, Water Jet Sweden introduced the FAWJ Micro Head package. It is for users of the company’s standard machines—the X-Series and Premium lines—who want to make highly precise, narrow cuts but don’t need to meet extremely tight tolerances, such as those often required for manufacturing microscale components.

Traditional abrasive waterjets typically produce a kerf of 0.8mm to 1.0mm (0.031″ to 0.039″). The Micro Head package lets users make cuts as narrow as 0.3mm (0.012″). Positioning accuracy is ±0.05mm/m (0.002″), and repeatability is ±0.025mm (0.0010″).

The cutting head for Water Jet Sweden’s Micro Head package. Image courtesy of Water Jet Sweden.

X-Series and Premium tables range from 1m × 1m to 4m × 2m (3.3’×3.3′ to 13.1’×6.6′).