BEN JOHNSON / SCIENCE PHOTO LIBRARY BEN JOHNSON / SCIENCE PHOTO LIBRARY
Ceramic moulds used for precision investment casting being placed in a furnace prior to the final metal casting stage. The casting method is based on the production of a wax pattern, an exact replica of the finished metal casting. The wax patterns serve as templates for making ceramic moulds; the wax is subsequently melted & drained from the mould to make room for the metal. Individual moulds are formed on separate units, made by coating the wax patterns in liquid ceramic & drying in air & ammonia gas. Photographed at NGL, Chard, Somerset, who make a range of products from simple steel castings to complex, heat resistant alloy components for aero-engines.
Model release not required. Property release not required.