We examined the construction and mechanical characteristics of composite materials formed using a light modeling SLA (stereolithography)-type 3D printer. 3D printers in their current state are unsuitable for existing processing methods and complex molding, as integral structure molding for targeted mechanical properties lower the resin itself, and cannot be realized at present. Given that conventional fused deposition modeling has issues pertaining to large voids between filaments, SLA is capable of creating a laminate by mixing fibrous materials with small resin voids. Therefore, in order to improve the material properties of the resin, glass fibers were mixed in, and the molding and its mechanical properties were evaluated with an SLA-type 3D printer. To confirm the effects of the fiber additive on the resin's formation properties, a test piece was formed using short glass fibers (with an average length of 20 mm) and glass powder (with an average particle diameter of 30 μm). The test piece obtained by mixing additional short glass fibers did not have good formability. Specimens mixed with the glass powder were moldable with up to 50 wt% added powder. To confirm the effect of the fiber material contents on the mechanical properties, resin test pieces with different glass powder contents were subjected to tensile testing. Increasing the glass powder content resulted in a 2.1-fold increase in the tensile strength and a 6.4-fold increase in the Young's modulus.
|Publication status||Published - 1 Jan 2017|
|Event||21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China|
Duration: 20 Aug 2017 → 25 Aug 2017
|Conference||21st International Conference on Composite Materials, ICCM 2017|
|Period||20/08/17 → 25/08/17|
- 3D printer
- Tensile test