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  2. Laser engraving - Wikipedia

    en.wikipedia.org/wiki/Laser_engraving

    Laser engraving metal plates are manufactured with a finely polished metal, coated with an enamel paint made to be "burned off". At levels of 10 to 30 watts, excellent engravings are made as the enamel is removed quite cleanly. Much laser engraving is sold as exposed brass or silver-coated steel lettering on a black or dark-enamelled background.

  3. Laser cutting - Wikipedia

    en.wikipedia.org/wiki/Laser_cutting

    The CO 2 laser is suited for cutting, boring, and engraving. The neodymium (Nd) and neodymium yttrium-aluminium-garnet lasers are identical in style and differ only in the application. Nd is used for boring and where high energy but low repetition are required. The Nd:YAG laser is used where very high power is needed and for boring and engraving.

  4. Potassium-40 - Wikipedia

    en.wikipedia.org/wiki/Potassium-40

    Potassium-40 (40 K) is a long lived and the main naturally occurring radioactive isotope of potassium.Its half-life is 1.25 billion years. It makes up about 0.012% (120 ppm) of natural potassium.

  5. Laser bonding - Wikipedia

    en.wikipedia.org/wiki/Laser_bonding

    Laser bonding is a marking technique that uses lasers to bond an additive marking substance to a substrate.. First invented in the mid 1990s by Essilor International, this patented method [1] produces permanent marks on metal, glass, ceramic and plastic parts for a diverse range of industrial and artistic applications, ranging from aerospace and medical to the awards and engraving industries.

  6. Category:Engraving - Wikipedia

    en.wikipedia.org/wiki/Category:Engraving

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  7. K40 - Wikipedia

    en.wikipedia.org/wiki/K40

    K40 may refer to: BMW K 1300 S (K40) Sportbike from BMW Motorrad; HMS Peony (K40), a corvette of the Royal Navy; INS Eilat (K-40), a destroyer of the Israeli Navy; INS Veer (K40), a corvette of the Indian Navy; Piano Concerto No. 3 (Mozart), by Wolfgang Amadeus Mozart; Potassium-40, an isotope of potassium; Redmi K40, a smartphone; Toyota K40 ...

  8. Argon–argon dating - Wikipedia

    en.wikipedia.org/wiki/Argon–argon_dating

    Argon–argon (or 40 Ar/ 39 Ar) dating is a radiometric dating method invented to supersede potassium–argon (K/Ar) dating in accuracy. The older method required splitting samples into two for separate potassium and argon measurements, while the newer method requires only one rock fragment or mineral grain and uses a single measurement of argon isotopes.

  9. Laser safety - Wikipedia

    en.wikipedia.org/wiki/Laser_safety

    A laser warning symbol. Laser radiation safety is the safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. Since even relatively small amounts of laser light can lead to permanent eye injuries, the sale and usage of lasers is typically subject to government regulations.

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