Kinked crack paths in polycarbonate samples printed by fused deposition modelling using criss-cross patterns

Strengthening of 3D Printed Fused Deposition Manufactured Parts Using the Fill Compositing Technique

In this paper, we present a technique for increasing the strength of thermoplastic fused deposition manufactured printed parts while retaining the benefits of the process such as ease, speed of implementation, and complex part geometries. By carefully placing voids in the printed parts and filling them with high-strength resins, we can improve the overall part strength and stiffness by up to 45...

The Criss-Cross Heart

During infancy, the patient was diagnosed with a large VSD and underwent PA banding through a left thoracotomy at the age of 5 months. At the time of PA banding for this patient, two-dimensional echocardiography and MRI were not yet available, and the complex anatomy could not be detected as easily as it can be today. When he was 4 years old, he underwent a sternotomy to close the VSD. However,...

[Criss cross heart].

Testing of Materials for Rapid Prototyping Fused Deposition Modelling Technology

Paper presents knowledge about types of test in area of materials properties of selected methods of rapid prototyping technologies. In today used rapid prototyping technologies for production of models and final parts are used materials in initial state as solid, liquid or powder material structure. In solid state are used various forms such as pellets, wire or laminates. Basic range materials ...

A parametric study of part distortions in fused deposition modelling using three-dimensional finite element analysis

A finite element analysis (FEA) model was previously developed by the current authors to simulate the fused deposition modelling (FDM) process. The model considered coupled thermal and mechanical phenomena and incorporated an element activation function to mimic the additive nature of FDM. Due to repetitive heating and cooling in the FDM process, residual stresses accumulate in a part during de...