Micro-Nano Processing: Femtosecond Laser vs. Picosecond Laser – How to Choose Tool?
In high-precision fields such as microelectronic manufacturing, medical device R...
MONO | 2025-11
INDUSTRY
In consumer electronics, biomedicine, and aerospace, structural ceramics like silicon carbide (SiC) are core-component staples for their high strength, heat/corrosion resistance. Yet their hard-brittle nature—especially for inverted taper holes (inlet diameter < outlet diameter, requiring micron-level precision and occasional internal treatment)—stumps traditional machining.MONO femtosecond laser offers a solution to this extreme manufacturing challenge.
Unlike traditional "positive taper holes," inverted taper holes have smaller inlets than outlets. Used in aerospace cooling holes (boost fluid flow), biomedical implants (reduce tissue friction), and often need smooth internal rounded corners (prevent stress-induced cracking)—all demanding micron precision.
• Ultra-high hardness: Mohs 9.2 (near diamond) wears/breaks tools, ruining taper control.
• Extreme brittleness: No plastic deformation—"reverse drilling" (expanding from inside out) triggers cracking.
• Low thermal conductivity: Traditional heat machining (e.g., conventional lasers) causes melting/thermal cracks.
• Chemical stability: Corrosion-resistant, insoluble—limits machining options.
Our ML-VOTEX high-precision micro-hole system delivers:
1. 0.001mm precision: Controllable taper + smooth inlet/outlet arcs.
2. Ra 0.4 surface quality: No burrs/chipping.
3. Minimal thermal impact: Cold machining, no thermal cracks.
4. Strong adaptability: Works on SiC, alumina, zirconia (≤2mm thick); handles blind/through/irregular holes; 1:10 depth-to-diameter ratio for integrated parts.
Ultra-short pulses (faster than ceramic heat dissipation) vaporize molecules instantly—"cold machining" avoids melting/cracks.
• Custom light field control: Beam shaping + spiral scanning expand hole diameter from inlet to outlet; adjusted tilt keeps focus on target, preventing deviation.
• Real-time digital twin: Pre-plans paths (based on thickness/taper); vision sensors monitor in-process, tweak laser frequency/energy for one-step forming.
Inverted taper holes already serve consumer electronics, aerospace, and biomedicine. We’ll deepen femtosecond laser tech to expand high-hard-brittle material solutions. Reach out for complex ceramic hole needs!
