Strengthening characteristics of samples produced by selective laser sintering with pearl coated sand

摘要：

Series of 8 specimens were made of pearl coated sand by selective laser sintering (SLS). Then, the specimens were strengthened by using post-curing process with different packing materials and heating temperatures. Finally, the tensile strength and the gas evolution at 1, 000°C were measured. The fractures were observed by means of SEM. Packing glass bead and heating at 200°C is the best post-curing process, which can make the tensile strength up to 6.28 MPa and the gas evolution up to 18.43 mL/g, meeting the requirement of molds and cores well. The curing characteristics were investigated.

关键词： selective laser sintering coated sand strengthening characteristics casting

作者: Li Jie Shen Qiwen Yu Lihua Wen Shifeng Liu Jie Wei Qingsong Shi Yusheng

作者单位: State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology, School of Material Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

会议类型: 国际会议

会议名称: The 11th Asian Foundry Congress(第11届亚洲铸造会议 AFC-11)

会议地点: 广州

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-12（万方平台首次上网日期，不代表论文的发表时间）