| Summary: | 碩士 === 國立臺北科技大學 === 材料科學與工程研究所 === 97 === The ceramic mold for precision casting in formed by repeatedly dipped in ceramic slurry and coated with fine ceramic sand. The shape of wax pattern may affect the thickness of the ceramic shell at the positions of different of radius and filets.
In this research, the wax patterns with different radius and filets(R5、R3、R1) were made into different wax trees(vertical cluster, horizontal cluster and the 45 degree cluster). The slurries of different viscosity (light, medium and thick) were used for dipping and the dipping were use by manual operation and robot. The thickness of
ceramic mold at locations of different radius or filets were measured and the factors. Affecting the results were discussed in this study.
It was found through this study, the slurry of medium viscosity is batter then other for dipping, and wax tree of 45 degree is the most appropriate way to make wax tree. It was also found, robot operation may be suitable for larger casting but manual operation is batter for complex shape casting due to even thickness throughout the ceramic mold.
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