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aircraft series, especially around the engine cowl and associated sheet metal, are noted for having a "dragged" form of engine turning entirely covering them. The tool creating the "swirls" was repeatedly moved along a short, irregular path each time while pressed against the metal, to create the
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Perlage engine turning is also used on various firearm components to prevent corrosion by holding traces of oil and lubricants on the surface, in turn to a polished surface resulting in a smooth operation.
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intricate appearance that was characteristic of the aircraft's sheet-metal parts. It is partly surmised to have been a mechanical method to "clad" a
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is often the metal chosen to decorate. The technique has been used in various industries, including aircraft and document verification.
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is often the metal chosen to decorate with jewelling, but any appropriate surface can be finely
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A bolt action rifle with the bolt position open, and jewelling detail on the bolt surface.
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of late 1915, with "dragged" engine turning on the engine cowl and associated sheet metal.
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553:"General Descriptions and Basic Sources (for Ornamental Turning and Straight-Line Work)"
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engraving. In the 20th century, it also came to refer to the different process of
583:"Guilloche, Rose Engines, Jeweling, & Engine Turning for Artistic Machining"
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Engravings produced by engine turning are often incorporated into the design of
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also would similarly decorate their vehicles with perlage engine-turned panels.
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Guilloché and perlage are traditional techniques used in have been used in the
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Computer
Science and Engineering - University of California, Riverside
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engine turning may be done with various machines, including
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pattern on the metal panels is one type of engine turning.
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or the instrument panel of the same were often perlaged.
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pattern of overlapping circles abraded onto the surface.
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412:In the 1920s and 1930s, automobile parts such as
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227:. Perlage uses an abrasive rotating disk or
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113:Learn how and when to remove this message
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601:"Eamonn Keogh's Engine Turning Page"
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587:CNCCookbook
469:Watchmaking
422:Customizers
394:Buick Super
384:Automobiles
335:Fokker E.II
167:Description
632:Categories
562:2023-12-13
507:References
446:guillochés
440:, to make
434:bank notes
418:dashboards
354:(nose) of
73:newspapers
487:Guilloché
438:documents
428:Documents
406:dashboard
378:duralumin
371:Eindecker
273:does not
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209:Guilloché
204:Equipment
198:geometric
180:Guilloché
161:Aluminium
481:See also
452:Firearms
373:fighters
325:Aircraft
248:patterns
244:machined
235:Material
392:A 1940
369:Fokker
352:cowling
294:removed
279:sources
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138:. The
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277:any
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254:Uses
66:news
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