Post on 22-Jan-2018
New Opportunities for Optimizing Structural Elements in Metal by Using Additive Manufacturing
// Salomé Galjaard
© Studio i2
// additive manufacturingAdditive Manufacturing
© DMRC
A process of joining materials to make objects from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing methodologies, such as traditional machining (ASTM).
DMLS // SLM
// other sectorsAdditive Manufacturing
aviation(fuel nozzle)
aerospace(venturi nozzle)
automotive(race car knuckle)
© GE © Morris Technologies, Inc. © EOS
// optimization for function
109kN
Additive Manufacturing
// optimization for functionAdditive Manufacturing
// optimization for functionAdditive Manufacturing
// optimization for productionAdditive Manufacturing
// optimization for productionAdditive Manufacturing
// optimization for productionAdditive Manufacturing
// productionAdditive Manufacturing
© Arup/Davidfotografie
// product before & afterAdditive Manufacturing
// the second iterationAdditive Manufacturing
Pin & fork connections and spanner eliminated
// influence on the structureAdditive Manufacturing
struts
cables
nodes50% lighter
compression & tension20% less
// optimization for functionAdditive Manufacturing
// optimization for functionAdditive Manufacturing
// optimization for functionAdditive Manufacturing
// optimization for productionAdditive Manufacturing
© Arup/Davidfotografie
© Arup/Davidfotografie
© Arup/De Fotomannen
// structural comparisonAdditive Manufacturing
Stainless steel 316LGalvanised S355 steel Maraging steel 1.2709
Von Mises stresses (MPa)
// material testAdditive Manufacturing
From the tests performed, the mechanical properties achieved were largely in accordance with normal wrought product forms, such as bars, plates, sheets and tubes in the solution annealed and mildly cold worked conditions. All of the test results conformed to the requirements of relevant international product standards for comparative products, with subtle variations in typical composition and mechanical properties. The results were very encouraging in the context of the project and demonstrate that current selective laser melting techniques, applied to suitable materials present a valid technology for the production of components of satisfactory quality and integrity.
As Printed 100x
Annealed 1050°C 100x
// functionally graded materialsAdditive Manufacturing
© Neri Oxman
// functionally graded materialsAdditive Manufacturing
© Withinlab
// thank you
// material testAdditive Manufacturing
tensile teststainless steeel 316L, as built
tensile teststainless steeel 316L, annealed