| Author | Tanyaluck Rungwiriyawanich |
| Call Number | AIT Thesis no.ISE-13-05 |
| Subject(s) | Size reduction of materials
|
| 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-13-05 |
| Abstract | Selective v acuum m anufacturing (SVM) technique has been applied in the medical area for the scaffold fabrication . SVM was developed by combining a concept of sand casting and a material sintering . Instead of using a physical pattern , a vacuum system has been used to create a cavity in a support material and the m aterial sintering process has been applied to create layers . T he size of fabricated scaffold is constrained by the size of the vacuum nozzle which use d for creating the cavity. In this study, the 20G nozzle from the previous study condition was replaced by the 27G nozzle in order to scale down the size of scaffold and improve SVM to a practical usage . The support material conditions that support the us e of the smaller nozzle were investigated and the part material preparation was also investigated to produce high amount of small powder. Comparing to the previous study, the size of fabricated scaffolds was successfully reduced. T he average pore size was reduced from 0.691 mm to 0. 526 mm. However , the porosity slightly reduced because the smaller particle could pack better in the cavity. The modulus of elasticity reduced from previous condition due to the temperature for bornding between layers was not sufficient to reach the same bonding condition. |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ISE-13-05 |
| 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) | Huynh Trung Luong;Pitt Supaphol |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2013 |