Frozen Slurry-based Selective Laser Gasification to Fabricate Ceramic Parts with Foam Structure

2018 International Conference on Advanced Materials, Intelligent Manufacturing and Automation

材料科学;机械制造;运输工程

Zhang, Geng^1 ; Chen, Hua^1,2 ; Guo, Yuan Zhang^1 ; Yang, Shao Bin^1

School of Mechatronic Engineering, Xi'An Technological University, Xi'an, SHANXI

710021, China^1

Shaanxi Key Laboratory of Non-Traditional Machining, Xi'an

710021, China^2

关键词: Ceramic parts;    Ceramic powder;    Different sizes;    Foam structure;    Freezing methods;    Ice crystals;    Laser processing parameters;    Laser scanning;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/382/4/042011/pdf
DOI  :  10.1088/1757-899X/382/4/042011

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper presents a rapid prototyping (RP) method of frozen slurry-based selective laser gasification for fabricating ceramic parts with foam structure. The slurry is composed of ceramic powder and water glass. The processing of a layer of green part involves casting, freezing and scanning. After accumulation and moulding, the sample is placed into water to melt and remove the excess materials. In the process of laser scanning, the gasified ice crystals make water glass foam and form the foam structure. The freezing method helps to improve the stability and strength of the paved layer. The foam structure of different sizes can be obtained by adjusting the laser processing parameters.