以快速原型製程製作陶瓷工件

Manufacturing ceramic workpiece with rapid prototyping process

黃識維(Shih-Wei Huang)

指導教授 ： 湯華興 ； 嚴孝全

國立臺北科技大學/機電學院/製造科技研究所/碩士(2013年)

摘要

本文主要提出的研究目的為利用全自動化製程設備製作工件及工件性質量測與廢料清除方法之研究。
在全自動化製作工件方面，過去我們是以半自動的方式製作工件，其供料方式是以人工使用針筒抽取漿料然後將漿料擠出到刮刀前進行鋪層。全自動則是以機構自動供料然後進行鋪層。本研究乃是利用全自動的快速原型設備製作生胚工件，然後利用高溫燒結爐燒結成緻密陶瓷工件，進行量測生胚工件的尺寸、及燒結工件之緻密度與均勻性、量測工件之x、y、z三軸之收縮率，最後是量測三點抗彎強度。結果顯示，全自動化所製作的工件的緻密度可達98%，在三軸收縮率方面分別為X:12.5%、Y:12.7%、Z:12.3%，而抗彎強度方面則為380Mpa，與理論直接近。
在廢料清除法方面，因過去在清料時易破壞工件。本研究發展出一套方法，依工件的幾何形狀來設計切割路徑，然後利用雷射切割，經實驗證明此法不但能有效減少廢料清除的時間，亦不會傷及工件。
本研究主要應用於生醫、電子、機械等各領域，製作小批量且複雜的陶瓷零件。

關鍵字

快速原型 ； 氧化鋁

並列摘要

Regarding the fully automatic manufacturing process, semi-automatic method was employed. Before layer casting, the slurry was manually extruded in front of the scraper from a syringe. Fully automatic manufacturing was based on the automatic feeding and layer casting. The green part fabricated with full automatic process was sintered with a high-temperature to be a densed ceramic workpiece. The density, uniformity, shrinkage along X/Y/Z axles, and bending strength of the green part and the ceramic part were observed individually. The results show that the workpiece fabricated by automatic manufacturing process the density was 98%, the shrinkage was X:12.5%, Y:12.7%, and Z:12.3% respectively, and the bending strength was 380Mpa which was close to the theoretical value.
Previously, the wastes removal, the workpiece was easily damaged. Therefore, this study aimed to develop a method to remove the wastes. Based on the geometry of the workpiece, The laser cutting path was designed. The results showed that the lattice-cut method could decrease the time-taken of the wastes removal without damaging the workpiece.
The main applications of this study are biomedical, electronic, and mechanical industries to produce small quantities of complex ceramic parts.

並列關鍵字

Rapid Prototyping ； Alumina

參考文獻

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