Sep 21, 2018 | By Thomas
A unique 3D printed shock absorber will make its debut at the Fakuma 2018 trade fair (October 16-20) Friedrichshafen. For years, Covestro has been developing customized polymer materials for all common manufacturing processes in 3D printing. At the Fakuma 2018 trade fair from 16 to 20 October in Friedrichshafen, Covestro will present a complex demonstrator for a shock absorber.
The 3D printed shock absorber boasts a high degree of functionality. In addition, the individual parts were produced from three different products and with the aid of three different manufacturing processes.
The outer spring of the 40 x 7 cm part is made of powdered thermoplastic polyurethane (TPU). It was shaped layer by layer using selective laser sintering and is notable for its elasticity and high abrasion resistance.
The adjusting screw inside the shock absorber has to be very strong and hard. For this reason, it is made of filaments of Covestro's robust polycarbonate material, using the fused filament fabrication (FFF) process. The air chamber in the interior is created from a liquid polyurethane resin. The digital light processing method has proven itself for such components with filigree structures, as in this case as well.
The individual components are subsequently connected to each other. "This complex structure would not have been possible with conventional production processes," explains Lukas Breuers, a marketing manager for 2D and 3D printing at Covestro. "Another new development is the combination of different materials with various, tailor-made properties. This has enabled us to significantly expand the possibilities of additive production and its areas of application.”
Posted in 3D Printing Application
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