L45 COHERENT | Alldatasheet
Document overview
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Technical content
Laps a 60 mm diameter disk down by 0.45 mm with 0.2 μm Ra finish in just 25 minutes
FEATURES
- Reliable fiber laser source
- Fully automatic lapping
- Online measurement and inspection
- Lapping precision, 0.01 mm
- Surface finish, <0.2 μm Ra
- Surface flatness within 0.01 mm of design, perfectly matched with next grinding and polishing steps
- Easily achieves accurate PCD diamond layer thickness according to C-scan map
- Continuous unattended running
- Coherent patent-pending technology L45 PCD DIAMOND LASER LAPPING MACHINE Laser Systems Fine and Coarse Lapping of PCD Diamond Disks
L45 PCD DIAMOND LASER LAPPING MACHINE Application Area – PCD Diamond Laser Lapping The L45 PCD Diamond Precision Laser Lapping Machine developed by Coherent is a perfect replacement for EDM and dia- mond powder grinding tools in the lapping of PCD diamond disks used in superhard tool applications. The easy-to-run laser tool has the following advantages:
- High efficiency. One L45 can finish lapping the equivalent of seven EDM machines.
- Perfect accuracy. The removal amount can be normally controlled to 0.01 mm.
- Flexibility. Parts with different removal amounts can be loaded and processed in the same run.
- Controllable surface shape. No need to prelap to a flat surface; specified convex surfaces can be generated as required.
- Low operating cost. Virtually no maintenance or spare parts are required. Key parts can last over 10 years.
- Environmentally friendly. Dust is collected in a dry process; noise is below 75 dB Main Characteristics – High Quality, High Efficiency, Low Cost Coherent offers the best-in-class laser tool for diamond material profile lapping to achieve ideal results:
- eMicro processing software -- a powerful tool with over 10 years of use in the field.
- Closed-loop control of 4-axis coordinated motion.
- Six standard stack positions of up to 76 mm diameter with each stack height up to 25 mm. Each stack can be assigned with a specific program or lapping thickness; 25 disks of 5 mm thickness or 40 disks of 3 mm thickness in one loading.
- Fully automatic. Autoloading, auto measuring, auto lapping, auto inspection, auto unloading, auto logging.
- High efficiency. The L45 can lap 60 mm disks down to 0.45 mm with 0.2 μm Ra finish in about 25 minutes.
- User-friendly. Easy operation, good noise control, and best-in-class exhaust system design. Machine Configuration – Standard, Professional, Intelligent The L45 laser profiling machine comes with three basic configurations to achieve best performance and cost:
- Standard version: Equipped with touch probe for pre- and post-lapping measurement and data logging.
- Professional version: In additional to touch probe, a laser proximity sensor is mounted for profile scanning.
- Intelligent version: Multiple sensors are mounted and monitored for data logging and process feedback. Fast processing is possible for specific shapes. Laser Lapped PCD Surface PCD Disks Lapped by L45 at Lasertech
L45 PCD DIAMOND LASER LAPPING MACHINE © 2022 Coherent Corp. Legal notices : coherent.com/legal sales@coherent.com www.coherent.com Specifications Model L45 Laser Source Fiber, 1070 nm Laser Power 450 W Stroke of Motorized X-Y Stage 300 x 300 mm, 1 μm resolution Max Traverse Speed 3000 mm/min Z axis 150 mm, 1 μm resolution C axis 0.1 degree resolution Supply 5 kW, 220 V; 2 x D8 compressed air 0.6 Mpa Environment No dust, no vibration. Operating temperature: 15°C-30°C Dust and Fume Removal Min 10 m3/min Machine Size (W/D/H in mm) 940/1680/1770 Exhaustion size (W/D/H in mm) /weight 730/650/1660 (100 Kg) Total Weight 850 Kg Processing Capability (for reference only) Coarse Lapping Rate 60 mm Diameter x 0.1 mm thickness @4.5 min; 2 μm Ra Fine Lapping Rate 60 mm Diameter x 0.05 mm thickness @7 min; 0.2 μm Ra