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Marking Contrast

COHR MaterialsProcessingBrochure 0816revA 3.pdf

COHR MaterialsProcessingBrochure 0816revA 3.pdf

…laser, engraves into the metal surface and creates the desired contrast.When marking plastics, the exact color of the mark is highly dependent on the additives found in the plastic. If a high quality mark with high contrast or color change is required, a 1 m, 532 nm or 355 nm wavelength from the…

RAPID NX Laser

RAPID NX Laser

…to 1000 kHz
* Up to 50µJ pulse energy
* Pulse on demand
* Burst mode
* High beam quality M2 100:1 Polarisation direction Vertical ± 3 degrees IR Contrast ratio > 100:1 Defined as the energy ratio of the main pulse and first post pulse Pulse stability (RMS) < 1% at 1 MHz Measured over 1000 pulses - 1…

SUPER RAPID-HE Lasers | Coherent

SUPER RAPID-HE Lasers | Coherent

…Applications Process Material Scribing Marking 3D Contour Mapping Sapphire Glass --> Features & Benefits
* 10W average power at 500 kHz
* 0-1000 kHz repetition rate, pulse on demand
* Ps-pulses with up to 200 µJ energy, 10 MW-range peak power, and high contrast versus background
* High power…

Materials Processing & Industrial Applications

Materials Processing & Industrial Applications

Marking Lasers are used to permanently mark an almost endless list of materials. Laser marking can provide a permanent high-contrast mark on different types of plastics, allowing no direct contact with the plastic other than through the laser beam. A variety of results can be achieved when marking

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

…enables easy field service to further reduce the cost of operation. Marking costs are also helped with picosecond lasers by process speed; every pulse causes material transformation and thus contributes directly to the mark contrast. With nanosecond lasers there is a need to build-up the thermal…

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

…enables easy field service to further reduce the cost of operation. Marking costs are also helped with picosecond lasers by process speed; every pulse causes material transformation and thus contributes directly to the mark contrast. With nanosecond lasers there is a need to build-up the thermal…

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

mark with very high contrast and does not have the corrosion/passivation and fading problems associated with conventional thermal laser marking. Mandatory UDI Marking The medical device industry faces an increasing need to create permanent identifying marks on its products. The benefits of marking

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

mark with very high contrast and does not have the corrosion/passivation and fading problems associated with conventional thermal laser marking. Mandatory UDI Marking The medical device industry faces an increasing need to create permanent identifying marks on its products. The benefits of marking

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

marking. However, the passivation in turn typically causes this type of mark to fade. And for multi-use products, the main limitation is that these oxide marks also fade with repeated autoclaving. The contrast eventually passes below threshold for certain automated readers Picosecond Laser Marking

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

marking. However, the passivation in turn typically causes this type of mark to fade. And for multi-use products, the main limitation is that these oxide marks also fade with repeated autoclaving. The contrast eventually passes below threshold for certain automated readers Picosecond Laser Marking

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

…picosecond laser marking, a major contributor to the high contrast black appearance seems to be a subsurface nanostructural change that results in efficient light trapping and light absorption, without significant change in the material composition. Figure 2. Some examples of black marks created on…

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

Microsoft Word - Coherent Whitepaper - Marking Stainless Steel Medical Devices

…picosecond laser marking, a major contributor to the high contrast black appearance seems to be a subsurface nanostructural change that results in efficient light trapping and light absorption, without significant change in the material composition. Figure 2. Some examples of black marks created on…

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