Toolpath generation for image-based direct slicing in additive manufacturing | |
| Author | Sarinya Putthawong |
| Call Number | AIT Thesis no.ISE-12-48 |
| Subject(s) | Image processing Surfaces |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Industrial and Manufacturing Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ISE-12-48 |
| Abstract | Rapid prototyping technique has played an important role in manufacturing process to improve the performance of product development process in terms of times for fabrication process and accuracy of prototypes. In general, RP fabrication process starts from obtained a CAD model. Then, the model is converted to STL format and sliced with horizontal plane. Next, toolpath can be generated from these sliced layers to command the machine operation. Constructing a layer requires both vector pattern and raster patterntoolpaths for creating cross sectional contour boundary, andfor creating the solid layer or removing waste material. This research presents an alternative approachfor toolpath generationby applying image processing technique to obtain the contour directly from 3D CAD model and to generate automatically toolpath to reduce the traditional steps as mentioned.This research focuses on automatic raster toolpath generation which on each layer, the image of predetermined raster pattern is mapped onto the imageof layer. Toolpath is then determined by applying Boolean operation.Since rapid prototyping technique has been concerned about the accuracy of the object. By applying image processing technique to generate toolpathmight leave the surface quality problem. Therefore, linearization technique has been applied for improving the surface quality by identifying the image contour in form of the linear segments. Furthermore, this research has alsoattempted to improve the surface quality of 3D model by applying the sloped layer concept. Image processing technique has been explored to identify the toolpath for unidirectional sloped layer.These approaches have been successfully implemented on LabVIEW program and some examples are illustrated in this research. |
| Year | 2012 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ISE-12-48 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Systems Engineering (ISE) |
| Chairperson(s) | Pisut Koomsap |
| Examination Committee(s) | Bohez, Erik L.J.;Huynh Trung Luong |
| Scholarship Donor(s) | Huynh Trung Luong |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2012 |