... - Micro-channel Milling Using Abrasive Waterjets

The small jet size allows for omnidirectional cutting and intricate patterns with radii as small as 0.1 mm.

Abrasive waterjet (AWJ) technology has evolved beyond heavy-duty industrial cutting into a precise solution, specifically for creating intricate micro-channels in hard-to-machine materials. What is Abrasive Waterjet Micro-Milling?

It can machine virtually any material, including high-strength alloys (316L stainless steel), brittle ceramics (PZT), composites, and laminates. MICRO-CHANNEL MILLING USING ABRASIVE WATERJETS ...

Dicing microelectronic wafers and machining piezoelectric materials without risk of electrical shorts between layers.

The mechanical erosion process leaves a clean surface without the recast layers often found in wire EDM or laser cutting. Key Technical Insights The small jet size allows for omnidirectional cutting

This process uses a high-velocity stream of water mixed with fine abrasive particles (typically garnet) to erode material at a microscopic level. Recent advancements in (with diameters as small as 0.2 mm or 0.3 mm) allow for the milling of narrow, controlled-depth channels. Why it’s a Game-Changer for Micro-Channels

The erosion rate is not constant; it typically decreases as the channel gets deeper. Specialized models are used to predict the final topography for deep channels. Key Technical Insights This process uses a high-velocity

Milling can be done with the workpiece submerged in water to reduce noise and contain debris. Submerged machining often results in narrower channels due to the surrounding fluid affecting the jet's expansion.