3D Gradient Printing of Energetic Multi-Materials

3D Gradient Printing of Energetic Multi-Materials

Rijnders, Bart (TU Delft Electrical Engineering, Mathematics and Computer Science)

Langendoen, K.G. (mentor)
Straathof, Michiel (mentor)
Zuniga, Marco (graduation committee)
Rellermeyer, Jan S. (graduation committee)

Delft University of Technology

Electrical Engineering | Embedded Systems

2019-07-01

The performance of gun and rocket propellants, which consist of energetic materials, is largely determined by their geometry and composition. Con- ventional production methods limit the performance by putting constraints on both. With additive manufacturing, or 3D-printing, there are signi- cantly fewer geometry constraints and together with the ability to combine multiple materials into a continuous gradient new performance optimization opportunities are created. In the current 3D-printing world it is possible to print single-material or discrete gradient multi-material objects by trans- lating a CAD model to printer instructions. This translation is done with slicer software that slices a 3D-model and outputs printer instructions in a G-Code le. This thesis looks at how an object with a continuous gradient can be printed. A modied version of the popular Cura slicing software is presented that can apply an approximation of a continuous gradient to an input model. The printer paths are simulated with the slicer software and ultimately printed using TNO's multi-material 3D-printer. While the print results show that energetic materials behave in such a dierent way than normal plastics that 3D-printing them it is not an easy task, printing a 3D-model with a multi-material continuous gradient is certainly viable.

3D-printing
Additive Manufacturing
Energetic Materials
Multi-Material Additive Manufacturing

http://resolver.tudelft.nl/uuid:e87b1b45-d291-432f-8e8b-f65b859255c9

2021-07-01

Student theses

master thesis

© 2019 Bart Rijnders