항공 소재 228종 국산화, 돈이 있어도 못 사던 시절이 끝났습니다

#AerospaceMaterials #CarbonFiber #Titanium #DomesticProduction #KoreaAerospaceIndustries Although there is talk that the era of titanium is over, the latest passenger aircraft actually use titanium more often. What truly ended was not the material itself, but the days when one could not purchase that material even with money. We have organized the process order to show what the localization of 228 types of aerospace materials has actually changed, and which areas are still not ours. 📌 Topics Covered in This Video · The main component of passenger aircraft fuselages was not titanium, but aluminum. In the previous generation of aircraft, aluminum accounted for 70 percent. · The Boeing 787 consists of half composite materials and 15 percent titanium. Aluminum was the one that gave way. · When carbon fiber comes into contact with aluminum, it corrodes starting from the seams. Therefore, the more widely composite materials are used, the more titanium is required. · A single 787 uses 113 tons of rolled titanium, which is more than any previous passenger aircraft. · The process of making the black thread is divided into four stages: yarn, prepreg, lamination, and assembly. · Japan's Toray exclusively supplies prepreg for the 787's frame, with a contract value exceeding $11 billion. · 42 percent of domestic aviation companies are airframe manufacturers, and they account for 70 percent of aviation exports. · The Aerospace Materials Development Alliance, launched in 2019, localized 228 types of materials and standard products, generating an import substitution effect of 71.5 billion won. · Sponge titanium is virtually entirely imported. The annual volume amounts to 8,000 tons, worth 400 billion won. · The bid for the U.S. Navy advanced trainer aircraft program has already been withdrawn. It was due to the requirement for a percentage of U.S.-made components, not technology. 🔗 Major Sources Energy Economy — KAI Successfully Localizes 228 Types of Aerospace Materials CompositesWorld — Boeing 787 Update Toray Composite Materials America — Toray Extends Comprehensive Agreement with Boeing to Supply Carbon Fiber TORAYCA Prepreg Munhwa Ilbo — KAI and Lockheed Martin Abandon U.S. Navy Training Aircraft Bid U.S. SEC Filing — Titanium Metals Corp. Form 10-K and Many Others