Anisoprint LLC presented a continuous basalt fiber reinforced composite for 3D printing.
Anisoprint, a developer of 3D printers using the Composite Filament Coextrusion technology and a continuous carbon fiber for those printers, has recently presented a material based on continuous basalt fiber.
It is called Composite Basalt Fiber (CBF). According to the company, CBF is 15 times stronger and stiffer than plastic, its strength-to-weight ratio is twice as much as aluminum 2024-T351. It is also five times as lightweight as steel and stronger than stainless steel.
Conventionally, fibers are used as a reinforcing material, another method is applying fibers and polymers in layers resulting in strength deterioration.
The key advantage of the combined co-extrusion method is printing with specifically continuous fiber reinforced plastic.
Anisoprint printers incorporate impregnated tow that is fed simultaneously with polymer material in the specified direction. By changing fiber volume fraction in the certain spots, it is possible to increase the product stiffness in the desired contours or points of the structure. Moreover, it is possible to feed the fiber in the certain spots by printing using only plastic.
Changing the printing direction allows for making precise and durable technological holes, which eliminates the necessity to make holes in the finished product, decreasing the material integrity. This fact has a positive effect on the product stress-related properties and production costs, since the product does not require long-term processing and tooling.
Two-matrix approach ( thermoset + thermoplastic) is also available. It ensures excellent adhesion and low porosity.
Moreover, when applied, continuous basalt fiber can significantly cut the product cost and enables the manufacturers to utilize radio transparency and dielectricity of this material, which is extremely important for various applications.
The products manufactured by combined co-extrusion technology can be used in the aerospace, automotive, medicine, engineering, sports, transportation industries etc.,
Translation from Russian: Olga Yurchenko