| About this Abstract |
| Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
|
| Symposium
|
Modeling
|
| Presentation Title |
An Efficient Layer Construction Method to Generate Accurate Printing Toolpaths of Periodic Cellular Structures for Selective Laser Melting Process |
| Author(s) |
Shujie Tan, Xi Zhang, Liping Ding, Yicha Zhang |
| On-Site Speaker (Planned) |
Shujie Tan |
| Abstract Scope |
Limited by stereolithography file format, current data processing in additive manufacturing (AM) chain is time-consuming and has a loss of model precision in data transformation. However, both the CAD software and AM machine accept the input of more convenient and high-precision mathematical curve expressions. A predefined curved scanning pattern can be achieved in a galvanometer scanning system of selective laser melting (SLM) process, which can improve the scanning accuracy and efficiency for the shapes that can be represented by mathematical functions, e.g. circle. Therefore, this study proposes a layer construction-based method to generate the toolpaths for cellular structure. To demonstrate the proposed method, a case study on the toolpath generation for a flame arrestor element with a large quantity of curved fine channels, is presented. Compared with the conventional printing preparation methods, the proposed method reduces up to 90% of the total preparation and achieves higher quality toolpaths. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |