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Abstract
Additive manufacturing is an innovative technology that allows to build complex shape structures and
components. With the development of new technology and materials, in these last years there was a big
expansion in the aerospace field. However, the 3D printing, due to the layer-by-layer process, can create
different infill geometries and anisotropic properties. The mechanical properties are vital for understanding
the performance of 3D printed material and need to be further studied. To study properly the new materials
behaviour is necessary before to understand the operational mode of the 3D printer and then, by a reverse
engineering model, reconstruct the 3D printed model.
The reconstruction is performed firstly analysing the machine code (Gcode) of the printer and extracting all
the coordinates. Then these coordinates have been fed to different code in different softwares to reproduce
virtually the printed layers. The used codes are able to recreate a solid geometric representation of the layer
that can be exported into a STEP file and therefore can be imported into a finite element analysis software.
Lasty, the imported files are meshed and analysed to predict how different specimen printed with different
orientation and infill can support under different load conditions without the necessity characterize in
advance the material properties.
Abstract
Additive manufacturing is an innovative technology that allows to build complex shape structures and
components. With the development of new technology and materials, in these last years there was a big
expansion in the aerospace field. However, the 3D printing, due to the layer-by-layer process, can create
different infill geometries and anisotropic properties. The mechanical properties are vital for understanding
the performance of 3D printed material and need to be further studied. To study properly the new materials
behaviour is necessary before to understand the operational mode of the 3D printer and then, by a reverse
engineering model, reconstruct the 3D printed model.
The reconstruction is performed firstly analysing the machine code (Gcode) of the printer and extracting all
the coordinates. Then these coordinates have been fed to different code in different softwares to reproduce
virtually the printed layers. The used codes are able to recreate a solid geometric representation of the layer
that can be exported into a STEP file and therefore can be imported into a finite element analysis software.
Lasty, the imported files are meshed and analysed to predict how different specimen printed with different
orientation and infill can support under different load conditions without the necessity characterize in
advance the material properties.
Tipologia del documento
Tesi di laurea
(Laurea magistrale)
Autore della tesi
Grigatti, Davide
Relatore della tesi
Correlatore della tesi
Scuola
Corso di studio
Ordinamento Cds
DM270
Parole chiave
Additive Manufacturing, Fused Deposition Modeling, reconstruction, Finite Element Analysis, rapid prototyping, mechanical properties, Gcode
Data di discussione della Tesi
18 Marzo 2021
URI
Altri metadati
Tipologia del documento
Tesi di laurea
(NON SPECIFICATO)
Autore della tesi
Grigatti, Davide
Relatore della tesi
Correlatore della tesi
Scuola
Corso di studio
Ordinamento Cds
DM270
Parole chiave
Additive Manufacturing, Fused Deposition Modeling, reconstruction, Finite Element Analysis, rapid prototyping, mechanical properties, Gcode
Data di discussione della Tesi
18 Marzo 2021
URI
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