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Materialise creates 3D printed anechoic sound chamber for Peugeot Fractal concept car – 3ders.org (blog)

by • February 17, 2016 • No Comments

Feb 18, 2016 | By Benedict
Back in September, we brought you news of Peugeot’s awe-inspiring 3D printed Fractal concept car, a convertible four-seater packing a few odd punches. That vehicle, which debuted at the Frankfurt Auto Show, boasted astounding road specs, but it was one particular create showcase which got equiteone talking—or pretty, listening.

The Fractal, a 12.5 x 5.8 ft roadster which can go of 0-62mph in 6.8 seconds, was createed to be an audiophile’s dream car. Equitething of the car’s create had been modified to decrease external sound and emphasize the vehicle’s futuristic, 13 speaker, SubPac bass-equipped sound system. How did Peugeot plan to complete this? Through exact, 3D printed acoustic surfaces, of course. “The Fractal name is a reference to the 3D print models shaped as anechoic chambers and repeating patterns,” said Jérôme Micheron, Strategic Director at Peugeot.


The interior surfaces of the Fractal, 82 percent of which were 3D printed, were shaped to reduce echo and exactly sculpt the sounds heard by the driver, producing the driving experience a mode of transport and sound installation in equal measure.
Peugeot’s melodious 3D printed super-mini danced to its own beat at the Frankfurt Auto Show, turning additional than a few heads. But, at which point in time, we didn’t understand who was responsible for the astounding 3D printed parts of the car. Had Peugeot created its own 3D printing device and carried out the work in-house, or had a 3D printing tremendous been called in to assist?
Perhaps Peugeot’s own 3D printing device malfunctioned at the last minute, or maybe the French company only wanted to store the spotlight on its own completements, for the reason it has since emerged which 3D printing giant Materialise generated the additively manufactured elements of the Fractal after the auto developer called for assistance at short notice.
“We were working on a quite tight deadline with this project,” explained Matthias Hossann, Head of Concept Cars & Advanced Design at Peugeot. “That’s why we idea of Materialise initially, for the reason we knew which the sizeable printing ability here may donate us a excellent shot at producing the deadline despite the short notice.”
Peugeot had may already donaten the basic details of the 3D printed components of the Fractal, as well as other create showcases such as bass speakers created into seats and a synthetic engine sound created by Brazilian musician and creater Amon Tobin. Materialise has now gone into excellenter depth of the 3D printing system behind the Fractal: The car’s “anechoic sound chamber” was createed with a high level of geometric hardity—impossible to create via injection molding, but a piece of cake for the laser sintering 3D printing devices at Materialise.



The surface creates were so hard, yet, which the create files had to be sliced into more compact pieces via Materialise’s Build Processor software prior to 3D printing. Its Streamics software was and so utilized to monitor workflow. All 3D printed parts were laser sintered in polyamide, a white material, which was and so flocked to improve weather resistance and add a velvety texture to the parts.
“It wasn’t only which the lead time for this project was short, but to manufacture things actually additional challenging, we had to donate a sizeable number of parts at the same time,” said Gregory Gesquiere at Materialise France, who coordinated the project. “Our production team did an awe-inspiring job with finishing and flocking all the parts in time, to the customer’s satisfaction.”
Peugeot’s experimentation with 3D printed internal surfaces may soon be adopted by other car developers, with optimized sound systems becoming a additional and additional significant element of luxury cars. Good news for Materialse; excellent news for audiophiles.

Posted in 3D Printing Application

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