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The machines for laser engraving and laser marking are the same, so the two terms are sometimes confused by those without relevant expertise. The impact of laser marking has been more pronounced for specially designed "laserable" materials and also for some paints. These include laser-sensitive polymers and novel metal alloys. [2]
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.
Other terms often used for printed engravings are copper engraving, copper-plate engraving or line engraving. Steel engraving is the same technique, on steel or steel-faced plates, and was mostly used for banknotes, illustrations for books, magazines and reproductive prints, letterheads and similar uses from about 1790 to the early 20th century, when the technique became less popular, except ...
Waterman Lily Ormsby (September 9, 1809 – November 1, 1883) was an American engraver and inventor who founded the Continental Bank Note Company and invented a pantographic engraving machine called the grammagraph to produce "roll-die" engraving on metal.
Engraving is done with a burin, which is a small bar of hardened steel with a sharp point. It is pushed along the plate to produce thin furrowed lines, leaving "burr" or strips of waste metal to the side. This is followed by the use of a scraper to remove any burs, since they would be an impediment during the subsequent inking process.
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