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The perlée pattern on the metal panels is one type of engine turning. Engine turning is a form of ornamental turning. The finishing technique may use lathes or engines to produce a pattern. Aluminium is often the metal chosen to decorate. The technique has been used in various industries, including aircraft and document verification.
Guilloché (French:), or guilloche (/ ɡ ɪ ˈ l oʊ ʃ /), is a decorative technique in which a very precise, intricate and repetitive pattern is mechanically engraved into an underlying material via engine turning, which uses a machine of the same name. Engine turning machines may include the rose engine lathe and also the straight-line ...
A straight line engine turning machine is a machine used for engraving decorative patterns on a surface. The engraving may be referred to as Guilloché, which also encompasses patterns created with the rose engine lathe. [1] Where the rose engine is based on a lathe, the straight line engine has more in common with a metal planer machine.
"We just heard this squeal, the rev of an engine and a huge, loud impact," Kimberly Stricklen, a visitor to New Orleans, told Reuters. "Then, the people, screaming. The sound of crunching metal ...
The decoration produced by a rose engine lathe is called guilloche. It sometimes confused with "jewel finishes" or engine turning, a much cheaper process of making swirly marks in metal by a rotating abrasive peg or pad, which is repeatedly applied to the surface to make a pattern of overlapping circles. Jewel finishes used to be common on ...
A Cathay Pacific Airbus A350 U-turned on Monday due to an engine component failure. After inspections, the airline found that 15 jets needed components replaced.
A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction. The four separate strokes are termed:
Dieseling or engine run-on is a condition that can occur in spark-plug-ignited, gasoline-powered internal combustion engines, whereby the engine keeps running for a short period after being turned off, drawing fuel through the carburetor, into the engine and igniting it without a spark.