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Dongguan College of Expertise has used Farsoon’s dual-laser Flight 3D printing expertise to provide the liner of a bobsled helmet.
The helmet is alleged to have already handed GB and ECE certifications, with the companions believing it to be safer, lighter and extra comfy in comparison with conventional foam helmets.
Harnessing 3D printing expertise for its design and customisation proficiencies, Dongguan College of Expertise is ready to produce two bobsled helmet linings in a single 7.5-hour construct on the Farsoon 403P machine. The college makes use of a specialised TPU materials developed by Wanhua Chemical, which is alleged to boast ‘excellent efficiency underneath excessive temperatures’, and has additionally leaned on the applying groups at each Farsoon and Wanhua to check varied parameter combos. Assessing these parameter combos, which built-in laser energy, scan spacing and layer thickness, the college was capable of choose one of the best stability of mechanical efficiency and weight requirement for the helmet lining lattice construction.
The ensuing helmet lining is comprised of a number of layers and buffer zones with totally different hardness ranges. Areas of the helmet liner with larger collision frequencies are outfitted with structural distribution of various densities to raised take in injury attributable to head collisions. The 3D printed lattice lining, along with the carbon fibre shell, weighs simply 1.1kg and makes use of 3D scan knowledge of athletes’ heads to make sure larger gravity self-adaptation, sporting consolation and security throughout the competitors.
“Due to Farsoon’s high-speed dual-laser Flight Expertise, we’re capable of obtain customised design and an accelerated manufacturing course of,” commented Assoc. Prof. Li Nan, Dongguan College of Expertise. “We’re additionally impressed with the efficiency of the brand new technology of customised helmets, because the affect energy of the helmet lining is elevated over 40% in contrast with the worldwide customary. It is usually inspiring for us to make use of 3D printed lattice constructions to provide different protecting sports activities items, which bringing new alternatives for the upgrading of helmets, armours and different protecting tools.”
“To be able to meet the requirement of fantastic bearing capability, affect resistance and shock absorption efficiency for the helmet lining, we particularly developed WF-PU95AB TPU materials for Farsoon’s fibre laser sintering course of,” added Dr. Yang Jie, Technique R&D Supervisor of Wanhua Chemical. “We solved the difficult technical points equivalent to laser absorption, powder re-coating for TPU materials processing, and achieved good bodily properties together with elasticity and suppleness even at a temperature as little as -35°C.”
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