Carbon Fiber Automotive Parts Production Industrialized Via C-RTM Process

Posted by Gregory Bragg on May 27th, 2021

It was reported on Dec. 3 that ESI Group (France), a worldwide firm with a concentrate on digital prototyping software and providers, supported Nissan Motor Co. (Yokohama, Japan) in its use of the Compression Resin Transfer Molding (C-RTM) manufacturing process, which sped up the event of car parts made from carbon fiber strengthened plastics (CFRP), a material that is usually thought of too time-consuming and too costly to industrialize for the automotive sector. “We have all the time thought-about CFRP as a material for future generations of vehicles,” says Hideyuki Sakamoto, EVP of Nissan Motor Co. “But with regards to actuality, CFRP can only be used for restricted models and seems to be extra challenging for mass market manufacturing. Indeed, prices are excessive, and complex designs are required to shape the material. ESI Group has been supporting Nissan’s CFRP challenge since 2015 by way of the evolution of its industrial product design and manufacturing methodologies for various vehicle models. The partnership was strengthened in 2018 with the CFRP mass production venture. To overcome the difficulty in shaping CFRP components, Nissan’s engineers, aided by ESI’s resolution, found a new approach: the C-RTM course of. The existing technique entails forming carbon fiber into the fitting form and setting it in a die with a slight hole between the upper die and the carbon fibers. Resin is then injected into the fiber and left to harden. Nissan’s engineers developed techniques to precisely simulate the permeability of the resin in carbon fiber, while visualizing resin circulation habits in a die using an in-die temperature sensor and a transparent die. The result of the simulation was a high-quality component with a growth time decreased by 50% and diminished by 80% for single molding. 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Gregory Bragg

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Gregory Bragg
Joined: April 22nd, 2021
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