| 基于光固化的直接陶瓷成形工艺 |
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| 引用本文： | 周伟召,李涤尘,周鑫南,陈世斌,陈张伟,连芩.基于光固化的直接陶瓷成形工艺[J].塑性工程学报,2009,16(3). |
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| 作者姓名： | 周伟召 李涤尘 周鑫南 陈世斌 陈张伟 连芩 |
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| 作者单位： | 1. 西安交通大学,机械制造系统工程国家重点实验室,西安,710049
2. 波音公司,美国密苏里州圣路易斯市,美国 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，教育部长江学者和创新团队发展计划，西安交通大学与波音公司国际合作项目，陕西省自然科学基金 |
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| 摘 要： | 文章把光固化技术应用于陶瓷成形,提出了一种新型的直接陶瓷成形工艺-陶瓷光固化工艺。通过实验研究发现,陶瓷浆料粘度、固化厚度对陶瓷素坯的成形过程有决定性作用;陶瓷粉末的体积分数决定了陶瓷素坯的收缩率。为减少陶瓷素坯收缩率,必须提高陶瓷粉末的体积分数。实验表明,陶瓷浆料粘度小于3000MPa·s,固化厚度大于200μm,能够满足该工艺的要求。陶瓷粉末体积分数大于40%,能够得到低收缩率的陶瓷零件。
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| 关 键 词： | 光固化 陶瓷浆料 粘度 固化厚度 |
Direct fabrication process of ceramics based on stereolithography |
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| ZHOU Wei-zhao,LI Di-chen,CHEN Shi-bi,CHEN Zhang-wei,LIAN Qin,ZHOU Xin-nan.Direct fabrication process of ceramics based on stereolithography[J].Journal of Plasticity Engineering,2009,16(3). |
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| Authors: | ZHOU Wei-zhao LI Di-chen CHEN Shi-bi CHEN Zhang-wei LIAN Qin ZHOU Xin-nan |
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| Abstract: | This paper presents a novel direct ceramic shaping process-ceramic stereolithography by applying stereolithography in the ceramic shaping process.Through investigation based on experiments,it were found that viscosity and cured depth of ceramic suspensions play a decisive role in the building of green ceramic parts and the volume fraction of ceramic powder has a influence on the shrinkage of green ceramic parts.In order to reduce the shrinkage of green ceramic parts,the volume of ceramic powder in the suspension must be increased.The experimental results that ceramic suspension will meet the requirement of ceramic stereolithography process when the viscosity of suspension is lower than 3000MPa·s and the cured depth of suspension is greater than 200μm.A ceramic part with low shrinkage can be built successfully if the volume fraction of ceramic powder is higher than 40%. |
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| Keywords: | Stereolithography ceramic suspensions viscosity cured depth |
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