Optimization and Appliction of Ceramic Laser Rapid Prototyping Technique

• Main Authors: Huang-Yin Chen, 陳皇印
• Other Authors: 湯華興
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/265vtm

碩士 === 國立臺北科技大學 === 製造科技研究所 === 94 === The aim of this study is to establish process parameters for layer with thickness of 10-50 μm by ceramic laser prototyping system. For achieving this purpose, changing material formulation, improving the system and establish laser scanning parameters are indispensable. Finally, workpieces with details were fabricated with sintering and fusing respectively. The first part of this study included modification of material formulation, establishing the drying temperature parameter, improving the accuracy of Z direction movement by installing a reducer, and studying the characteristic of laser scanning. The second part studied the property transformation depth and scanning line width, which were influenced by different off-focus distances, laser power and scanning velocity. The third part was the fabricating workpiece with the parameters established in the second part; it included 3D CAD, workpiece slicing, file transform and making workpiece by ceramic laser prototyping system. After the system the system, the layer thickness was reduced from 100 μm to 10 μm, and the accuracy of Z axis was better; the error of each layer could be controlled within 1μm. By using the new formulation slurry, the un-scanned green piece was collapsed easily in water; therefore, workpiece could be get rapidly by immerse the green block in water. Regarding the laser scanning parameters, the off-focus scanning property transformation depth of 10-50μm was obtained by indirect method. Besides, the workpieces made by sintering parameters could be infiltrated successfully to improve the strength of workpiece.