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  2. Laser engraving - Wikipedia

    en.wikipedia.org/wiki/Laser_engraving

    Anodized aluminum is commonly engraved or etched with CO 2 laser machines. With power less than 40W this metal can easily be engraved with clean, impressive detail. The laser bleaches the color exposing the white or silver aluminum substrate.

  3. Anodizing - Wikipedia

    en.wikipedia.org/wiki/Anodizing

    The anodizing current varies with the area of aluminium being anodized and typically ranges from 30 to 300 A/m 2. Aluminium anodizing (eloxal or El ectrolytic Ox idation of Al uminium) [ 12 ] is usually performed in an acidic solution, typically sulphuric acid or chromic acid, which slowly dissolves the aluminium oxide.

  4. Photosensitive anodized aluminum - Wikipedia

    en.wikipedia.org/wiki/Photosensitive_Anodized...

    Type 2 photosensitive anodized aluminum is typically coated with a photo resist, which may be of either the positive or negative type. Exposure of the photo resist through a negative and its subsequent development creates areas on the plate that are either protected by the resist or exposed to the effects of the dye, bleach, or etchant that are ...

  5. Channel letter - Wikipedia

    en.wikipedia.org/wiki/Channel_letter

    A standard channel letter is a three-dimensional graphic sign element. Its channel is fabricated from sheet metal, most often aluminum since it will not rust. A flat sheet of aluminum is typically cut on a table by a computer-controlled router, laser, or water jet, based on a vector-based art file (.cdr, .eps, .ai, .scv, .sci, or .fs).

  6. Pioneer plaque - Wikipedia

    en.wikipedia.org/wiki/Pioneer_plaque

    The Pioneer plaques are a pair of gold-anodized aluminum plaques that were placed on board the 1972 Pioneer 10 and 1973 Pioneer 11 spacecraft, featuring a pictorial message, in case either Pioneer 10 or 11 is intercepted by intelligent extraterrestrial life. The plaques show the nude figures of a human male and female along with several symbols ...

  7. Florida man stabbed ex-girlfriend 70 times ahead of domestic ...

    www.aol.com/florida-man-stabbed-ex-girlfriend...

    A Florida man is accused of stabbing his estranged girlfriend up to 70 times during a fatal break-in - exactly one month after he was nabbed for assaulting the victim and ordered to stay away from ...

  8. Aluminum electrolytic capacitor - Wikipedia

    en.wikipedia.org/wiki/Aluminum_electrolytic...

    By design, a non-solid aluminum electrolytic capacitor has a second aluminum foil, the so-called cathode foil, for contacting the electrolyte. This structure of an aluminum electrolytic capacitor results in a characteristic result because the second aluminum (cathode) foil is also covered with an insulating oxide layer naturally formed by air.

  9. Here's who Donald Trump could pick for attorney general after ...

    www.aol.com/heres-donald-trump-could-pick...

    Sen. Mike Lee, R-Utah. Lee, who has served 14 years in the Senate and sits on the Judiciary Committee, was considered a top candidate for attorney general before Gaetz was chosen and could ...

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