Dalian University of Technology’s School of Mechanical Engineering team used an
internationally first “ultra-low temperature forming” process to mass-produce
integrated propellant-tank bottoms over 2 m in diameter, shortening
manufacturing cycles by more than 90%. The metal panels are 4 mm thick with a
smooth finish; despite their thinness they must withstand launch vibration,
shock and support hundreds of tonnes of propellant. The university says the
breakthrough could lower costs and raise launch cadence efficiency for
commercial space operators.
