陶瓷雷射快速原型機之鋪料機構改善與工作平台精度量測

Improving Paving Mechanism and Measuring Working Table Accuracy of Ceramic Rapid Prototyping Machine

張凱翔(Kai-Hsiang Chang)

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(2011年)

摘要

本校之陶瓷雷射快速原型設備分為鋪層系統、雷射掃描系統及控制系統。鋪層系統中之鋪料機構於鋪料時，在多孔式分配器出口為需先使漿料堆積且連結，造成漿料之浪費及清理不便，且各孔流量不均，故此堆積連結之漿料在鋪層時會造成液體大量下滲到生坯塊內，當液體下滲時，其厚度超過臨界飽和厚度(Critical Saturated Thickness, CST)，生坯便會產生裂痕。所以本文之第一個目的為改善鋪層機構。運用模擬電路，進行多孔分配器之流量分析，並改良使各孔之流量均勻。
近期本實驗欲採用線性馬達工作平台。對於此新系統必須建立精度量測方法，以便將來調整及校準。本文之第二個目的為在線性馬達工作平台上建立量測系統，進行工作平台之定位及行走精度量測，並進行誤差計算，以便將來進行控制及硬體上的校準。

關鍵字

快速原型 ； 鋪層 ； 供料 ； 分配器 ； 工作平台

並列摘要

The existing ceramic laser rapid prototyping apparatus in our laboratory includes three systems which are layer casting system, laser scanning system and control system. When using current paving mechanism of layer casting system, the multi-hole distributor will feed a bundle of slurry in front of the scraper, and make a lot of waste. Beside this, the flow rate from each hole was not very equally. The bundle of slurry moves with the scraper during casting, a lot of liquid infiltrates into the dried green block. Thin layer cracks when liquid infiltrating depth over the Critical Saturated Thickness. So the first aim of this study is to improve the paving mechanism. To make the flow rate from each hole more equally, using electric circuit simulation and analyzing the flow rate of the multi-hole distributor.
To adjust the XY linear table simple and efficient in the future. Build a measurement method is necessary. So the second aim of this study is to build a measurement system on a linear motor XY table. Calculate the position and contour errors by measuring accuracy. In the future, developing and adjusting linear motor could be more precisely by using this measurement system.

並列關鍵字

Rapid Prototyping ； layer paving ； slurry feeding ； XY table

參考文獻

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