2022 Beijing Winter Olympics 3D printing black technology - 3D printing private customization of snowmobile helmets
The 2022 Beijing Winter Olympics snowmobile event is one of the fastest and highly ornamental events, so the hardware requirements are very strict.
The 2022 Beijing Winter Olympics snowmobile event is one of the fastest and highly ornamental events, so the hardware requirements are very strict. The snowmobile helmet developed by the snowmobile helmet research and development team led by Li Nan, an associate professor of the school of Education (normal college) of Dongguan Institute of Technology, has been applied to the Winter Olympic training of the national team. The team uses 3D reverse modeling and dot matrix structure 3D printing technology to customize snowmobile helmets one-to-one by collecting athletes' data, so as to meet the actual needs of each athlete. The helmet has the characteristics of personalization, weight reduction and safety.
In terms of materials, the outer layer of this independently developed snowmobile helmet is made of China Aerospace T800 carbon fiber material with high strength and excellent anti-collision performance. T800 carbon fiber is a new type of high strength and high modulus fiber with carbon content of more than 95%. Because the material is carbonized and graphitized, it has low density and high strength.. According to relevant data, the density of carbon fiber material is lower than that of aluminum, but the strength is greater than that of steel.
The material buffer layer inside the helmet adopts 3D printing dot matrix structure. The microstructure of the material plays a great role in its ability to absorb impact. Finally, 3D printing (SLS Technology) and TPU powder materials are used to design and develop the dot matrix structure of the snowmobile helmet buffer layer, which is better than the traditional EPS foam material. Its impact resistance is improved by about 40%, which can resist various impact forces of the helmet in case of collision and better protect the athlete's head, The helmet made of carbon fiber and TPU lattice structure weighs only about 1.1kg, which is 500g less than the helmet used by the national team before, effectively reducing the weight of athletes.
