陶殼模快速原型機鋪層系統之改善

Improvement in Paving System of Rapid Prototyping Machine for Ceramic Shell Mold

郭朝輝(Chao-Hui Kuo)

指導教授 ： 湯華興 ； 洪永銘

國立臺北科技大學/機電學院/機電整合研究所/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00010

摘要

本校與合漢科技合作的陶殼模快速原型機，在本研究團隊的努力下已具備人機介面且系統已可以自動化。本研究的目的為改善此設備的鋪層系統，增加機台的精度與穩定度，並且使用新式下料的方法鋪層，可以穩定的以全自動的模式製作出陶殼模。
現有的鋪料軸在鋪層時會有掀料的情形，本研究以有限元素分析軟體ANSYS分析鋪料軸在作動時受力的情形， 並且重新製作鋪料軸以解決掀料的問題。
以陶瓷雷射燒結法製程為基礎，建構新式鋪層系統包括新式鋪料軸、分配器、漿料供應設備、漿料過濾器、梭動漿料閥，在測試其功能並找出適合的鋪層參數。加裝減速機與量測Z軸平台各部份的精度，證明Z軸平台為一個良好的鋪層環境。
經實驗得知使用此快速原型系統，可讓Z軸平台的下降誤差減少到負1μm，在實際製程最薄可達到10μm之層厚，可達到精密鑄造的等級。

關鍵字

陶瓷雷射燒結法 ； 陶殼模 ； 鋪層

並列摘要

Rapid prototyping machine for ceramic shell mold, the product of the cooperation of Lapex Technology Co., Ltd., and our university, has been equipped with a man-machine interface, and is able to work automatically thanks to our research team. The purpose of this study is to improve the machine’s layer paving system, and to enhance the accuracy and stability of the mechanism. With the new way to pave layers, the machine can steadily manufacture ceramic shell mold fully automatically.
During the paving procedure the already paved layer could be destroyed by the scraper; therefore, in this study, we analyze the loaded condition of the moving paving axis with ANSYS, and re-design a new paving axis to solve the problem of layer destruction.
On the basis of ceramic laser sintering, we establish a new layer paving system which includes innovative paving axis, distributor, slurry supplying equipment, slurry filter, and shuttle slurry feeding valve, test the functions of the newly-built system, and find out proper parameters for layer paving.
According to the experiments, we conclude that by suing this rapid prototype system, the descending error in Z axis platform can be decreased to 1μm, and the layer thickness can be minimized down to 10μm, approximating to the grade of the precision casting, in an actual production.

並列關鍵字

Ceramic laser sintering process ； Ceramic shell mold ； layer paving

參考文獻

[6] 劉川豪，陶殼模快速原型系統自動化，碩士論文，國立台北科技大學 機電整合研究所，台北，2005

[1] Jacobs,Paul F, “Rapid Prototyping & Manufacturing-Fundamentals of StereoLithog- raphy”, U.S.A:Society of Manufacturing Engineers,1992。

[9] 嚴孝全，陶瓷雷射燒結快速原型技術之研發，博士論文，國立台北科技大學 機電科技研究所，台北，2007

[11] M. F. Spotts and T. E. Shoup, Design of Machine Elements Eight Edition, N.J USA: Pearson Education, Inc., 2004, pp. 458-459.

[2] Chua Chee Kai,Leong Kah Fai, ” Rapid Prototyping”, New York: John Wiley & Sons ,1997。