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  2. Laser cutting - Wikipedia

    en.wikipedia.org/wiki/Laser_cutting

    For sheet metal cutting, the focal length is usually 1.5–3 inches (38–76 mm). [7] [8] Advantages of laser cutting over mechanical cutting include easier work holding and reduced contamination of workpiece (since there is no cutting edge which can become contaminated by the material or contaminate the material). Precision may be better since ...

  3. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    Helium–silver (HeAg) metal-vapor laser [3] 224.3 nm Scientific research Strontium vapor laser: 430.5 nm Scientific research Neon–copper (NeCu) metal-vapor laser [3] 248.6 nm Electrical discharge in metal vapor mixed with neon buffer gas. Scientific research: Raman and fluorescence spectroscopy [4] [5] Copper vapor laser: 510.6 nm, 578.2 nm

  4. List of laser applications - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_applications

    Lasers above 300W are used in brazing, thin metal welding, and sheet metal cutting applications. The required brightness (as measured in by the beam parameter product) is higher for cutting applications than for brazing and thin metal welding. [ 12 ]

  5. Laser pointer - Wikipedia

    en.wikipedia.org/wiki/Laser_pointer

    Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.

  6. Laser beam machining - Wikipedia

    en.wikipedia.org/wiki/Laser_beam_machining

    where t is the depth of cut, P is the laser beam power, v is the cutting velocity, and d is the laser beam spot diameter. [5] The depth of the cut is also influenced by the workpiece material. The material's reflectivity, density, specific heat, and melting point temperature all contribute to the lasers ability to cut the workpiece.

  7. Yes, You Really Should Bake With Room Temperature Eggs ... - AOL

    www.aol.com/yes-really-bake-room-temperature...

    Glass vs. Metal: Which Pans Are Better for Baking? To Sift or Not to Sift: Is It a Waste of Time? Related articles. AOL. The very best gifts for men, from $2 to over $100. AOL.

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