Journal article
Preparation of a defect-free alumina cutting tool via additive manufacturing based on stereolithography – Optimization of the drying and debinding processes
Ceramics international, Vol.42(10), pp.11598-11602
08/01/2016
DOI: 10.1016/j.ceramint.2016.04.050
Abstract
A dense defect-free alumina cutting tool was fabricated via stereolithography process. Different drying processes and debinding profiles were then tested and compared to find the optimal way for the preparation of the sintered body. The experimental results showed that using PEG400 as a liquid desiccant results in a lower deformation of the body compared to the natural drying process. Compared with vacuum debinding or air debinding, a two-step debinding process, which consisted of both a vacuum pyrolysis step and the following air debinding, is allowed to control the pyrolysis rate while suppressing the formation of defects in the alumina body. After optimization of the postprocessing, the relative density of the sample as high as 99.3%, and the Vickers hardness ∼17.5GPa. These properties are similar to the properties of alumina bodies prepared via the conventional shaping method.
Details
- Title: Subtitle
- Preparation of a defect-free alumina cutting tool via additive manufacturing based on stereolithography – Optimization of the drying and debinding processes
- Creators
- Maopeng Zhou - Guangdong University of TechnologyWei Liu - Guangdong University of TechnologyHaidong Wu - Guangdong University of TechnologyXuan Song - University of Southern CaliforniaYong Chen - University of Southern CaliforniaLixia Cheng - Guangdong University of TechnologyFupo He - Guangdong University of TechnologyShixi Chen - Guangdong University of TechnologyShanghua Wu - Guangdong University of Technology
- Resource Type
- Journal article
- Publication Details
- Ceramics international, Vol.42(10), pp.11598-11602
- DOI
- 10.1016/j.ceramint.2016.04.050
- ISSN
- 0272-8842
- eISSN
- 1873-3956
- Publisher
- Elsevier Ltd
- Grant note
- name: Research Funding for Introduction of Guangdong Province Leading Talents, award: 40012001; name: Project on the Integration of Industry, Education and Research of Guangdong Province, award: 2011A090200080
- Language
- English
- Date published
- 08/01/2016
- Academic Unit
- Industrial and Systems Engineering; Injury Prevention Research Center; Mechanical Engineering
- Record Identifier
- 9984187073602771
Metrics
17 Record Views