“Corvette has never been focused on an exclusive material – be it aluminum, carbon fiber, or fiberglass”, claims Corvette Executive Chief Engineer Tadge Juechter. “Instead, we are constantly looking for the best materials structure, powertrain, and chassis to improve the performance.”რა ტექნიკურად აარიდა თავი იაფიანის თქმას
It all began in 1953 and the first-generation Corvettes that were built with an all-fiberglass body. It was chosen by legendary GM designer Harley Earl because it was light, rustproof and economical since it did away with the need for metal stamping dies.
As the years passed and technology progressed, so did the materials used in the Corvette. From 1968, the third generation car’s bodywork was smoother due to the use of a die-cast tool for shaping the fiberglass and resin.
The big change, however, came in 1973. That was the year that pure fiberglass was replaced by sheet-molded composite, or SMC, which comprised of a reduced ratio of resin to fiberglass and included a catalyst formed under high pressure and heat.
The norm is than almost all new cars weigh more than their predecessors do. However, the C5 Corvette that was launched in 1997, was in fact nearly 100 pounds lighter despite being longer and wider than the fourth generation model.
Not only were its panels very light, due to the use of more plastic than ever before, but the all-new chassis’ floorpan used high-strength rails and hydroformed sections to combine rigidity with low weight.
აი ესეც შევროლეტის საყვარელი მატერიალი პლასტმასი და SMC. აი SMC რა არის
SMC is both a process and reinforced composite material. This is manufactured by dispersing long strands (usually >1”) of chopped fiber (commonly glass fibers or carbon fibers on a bath of resin (commonly polyester resin, vinylester resin or epoxy resin). The longer fibers in SMC result in better strength properties than standard bulk moulding compound (BMC) products. Typical applications include demanding electrical applications, corrosion resistant needs, structural components at low cost, automotive, and transit.
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