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UV DPSS lasers are effective for drilling plexiglass (acrylic) as they provide "cold" processing by directly breaking molecular bonds, resulting in clean, precise holes without significant thermal stress, burrs, or discoloration. Why UV DPSS Lasers Are Suitable for PlexiglassÂ
Plexiglass (polymethyl methacrylate or PMMA) absorbs ultraviolet wavelengths well, unlike common clear acrylic which is transparent to some visible light and infrared wavelengths used by diode and CO2 lasers, respectively.Â
- Cold Ablation: The high photon energy of UV light (typically 355 nm) allows for photoablation, a process that removes material with minimal heat input to the surrounding area. This prevents melting and deformation, which are common issues with other laser types when processing plastics.
- Precision: UV lasers offer excellent beam quality (low M² values, typically <1.2) and small spot sizes (often <0 mm). This precision is ideal for micromachining and creating fine, clean-walled holes.
- Material Integrity: The lack of thermal damage ensures the structural integrity of the remaining material around the drilled hole is maintained.Â
Drilling Process and ConsiderationsÂ
UV DPSS lasers, particularly in the nanosecond pulse range, are widely used for drilling plastics, medical components, and printed circuit boards (PCBs) due to their precision and lack of thermal effects.Â
- Pulsed Operation: Pulsed UV lasers (e.g., at 30-100 kHz frequency) are necessary for material removal, as the high peak power in each pulse vaporizes the material. Continuous Wave (CW) lasers are generally used for marking or low-power applications.
- Power and Speed Settings: Achieving optimal drilling results requires balancing laser power and scan speed. High power and appropriate speeds are used to ensure the material is fully ablated in controlled layers, leading to smooth internal walls and clean edges.
- Multilayer Processing: For through-holes in thicker plexiglass, the process often involves multiple passes or specific z-axis control to achieve the desired depth and maintain hole quality.Â
Summary Table of Suitable UV LasersÂ
Several commercial UV DPSS lasers are available for this application.Â
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High Power UV Laser Marking Machine Cost |355nm ...
RFH Laser
https://www.rfhtech.com › 355nm-UV-Laser_c1
RFH Laser
https://www.rfhtech.com › 355nm-UV-Laser_c1
The UV laser series products have stable power and high integration. Small size, long life, excellent beam quality, high stability, and can be customized ...Read more
DPSS Laser - GZTECH
Gztech Laser
https://en.gzlasertech.com › Products › DPSS Laser
Gztech Laser
https://en.gzlasertech.com › Products › DPSS Laser
High power: From 3W to 40W ; Superior beam quality: M²<1.2 ; Perfect laser spot quality: Beam circularity >90% ; warranty: 18 months ...Read more
Series 3500 UV Laser System
DPSS Lasers, Inc.
https://www.dpss-lasers.com › series-3500-uv-laser-syst...
DPSS Lasers, Inc.
https://www.dpss-lasers.com › series-3500-uv-laser-syst...
Series 3500 UV Laser System. The Series 3500 DPSS laser (US Patent #6,002,695) is the most efficient, high power, quasi-CW DPSS UV laser commercially available.Read more
Laser Micromachining – Passat Diode-Pumped Solid State ...
Passat Ltd.
https://passatltd.com › laser-micromachining
Passat Ltd.
https://passatltd.com › laser-micromachining
Proprietary High Power DPSS Picosecond UV lasers at work. · Drill micro-holes with diameter 10 µm in 1 mm thick glass. · Cut relatively thick glass (up to 2 mm ...Read more
RFH 355nm UV Nanosecond Laser For Acrylic Cutting And ...
RFH Laser
https://www.rfhtech.com › blog › rfh-355nm-uv-nanose...
RFH Laser
https://www.rfhtech.com › blog › rfh-355nm-uv-nanose...
Jul 22, 2022 — The output 355nm UV laser has high beam quality (M2<1.2), extremely narrow pulse width (less than 25ns), average power exceeding 30W, and high ...Read more
Superior Performance, High Power, Updated Diode ...
Photonics Industries International. Inc.
https://www.photonix.com › News Releases
Photonics Industries International. Inc.
https://www.photonix.com › News Releases
Our DX Series Lasers enable better precision industrial laser micromachining applications such as: cutting, scribing, marking, and drilling of small features.Read more
DPSS 0.125mJ Flying UV Laser Marking System Gainlaser ...
uv-lasermarkingmachine.com
http://www.uv-lasermarkingmachine.com › sale-143229...
uv-lasermarkingmachine.com
http://www.uv-lasermarkingmachine.com › sale-143229...
DPSS 0.125mJ Flying UV Laser Marking System Gainlaser For Leather Acrylic ; Export Wooden Case · 5-8 days · T/T · 500 sets per month · DPSS Flying UV Laser Marking ...Read more
1/3/5/12 watt UV 355 nm DPSS laser modules for engraving ...
endurance-lasers.com
https://www.endurance-lasers.com › products › 1-3-5-12...
endurance-lasers.com
https://www.endurance-lasers.com › products › 1-3-5-12...
All solid-state AOM Q-switched laser at 355 nm has the features of high peak power, high repetition rate, and short pulse duration.Read more
$3,860.00In stockFree delivery
DPSS Lasers, Inc.
DPSS Lasers, Inc.
https://www.dpss-lasers.com
DPSS Lasers, Inc.
https://www.dpss-lasers.com
DPSS Lasers Inc. is a leading manufacturer of high power, 355 nm UltraViolet (UV), solid state lasers. Superior reliability, unparalleled performance and world ...Read more
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DPSS UV Laser - 355 nm - Laser Marking - Applications
VONJAN
https://www.vonjan-tech.de › ... › Laser Marking
VONJAN
https://www.vonjan-tech.de › ... › Laser Marking
UV lasers at 355 nm are an excellent solution for high-contrast and gentle marking on a wide range of materials such as plastic, glass, stainless steel, copper ...Read more
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