By Piotr Jędrzejewski
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December 3, 2024
BMW has been using 3D printing technology since 1991, starting with the production of parts and moulds for castings. In 2015, the FIZ Research and Innovation Centre in Munich produced 100,000 parts exclusively for internal use. Printed parts are already moving away from mere prototypes, or components supporting traditional casting processes, and increasingly 3D printing is being used for final products - one such example is the water pump impeller, already produced in quantities of several hundred. The vehicle's water pump impeller is responsible for circulating fluid through the cooling system, allowing the engine to run at optimum temperature. This precision component, which is subjected to unheard of stresses during its technical life, finds its use in the Deutsche Tourenwagen Masters races. Compared to its conventional counterpart, it is cheaper and simpler to manufacture.