Technical Development of Slurry Three-Dimensional Printer

2nd International Conference on Automation, Control and Robotics Engineering

工业技术;计算机科学;无线电电子学

Jiang, Cho-Pei^1 ; Hsu, Huang-Jan^2 ; Lee, Shyh-Yuan^2,3

Department of Power Mechanical Engineering, National Formosa University, No.64, Wunhua Rd., Huwei Township, Yunlin County

632, Taiwan^1

School of Dentistry, National Yang-Ming University, No. 155, Sec. 2, Linong Street, Taipei

112, Taiwan^2

Department of Stomatology, Taipei Veterans General Hospital, No.201, Sec. 2, Shipai Rd., Beitou District, Taipei

112, Taiwan^3

关键词: Ceramic particle;    Digital light processing;    Fabrication method;    Fabrication time;    Liquid-crystal panels;    Surface methods;    Technical development;    Volumetric errors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/235/1/012010/pdf
DOI  :  10.1088/1757-899X/235/1/012010

来源: IOP

【 摘 要 】

The aim of this paper is to review the technical development of slurry three-dimensional printer (3DP) which based on photo-polymerization and constrained surface method. Basically, slurry consists of ceramic powder, resin and photo-initiator. The light engines for solidifying the photo-curable slurry can be classified as laser, liquid crystal panel (LCD), digital light processing (DLP). The slurry can be reacted and solidified by selective ray according to the reaction spectrum of photo-initiator. Ceramic powder used in this study is zirconia oxide. Experimental results show that ceramic particle size affects the viscosity of slurry severely resulting in low accuracy and the occurrence of micro crack in the layer casting procedure. Therefore, the effect of particle size on the curability and accuracy of built green part is discussed. A single dental crown is proposed to be fabricated by these three light engines as a benchmark for comparison. In addition, the cost and the limitation are compared in the aspect of dental crown fabrication. Consequently, the lowest cost is LCD-type slurry 3DP system. DLP-type slurry 3DP can produce green body with the fastest fabrication time. The volumetric error of sintered part that made by these three fabrication methods is similar because the composition of slurry is the same.