段老师在SCI期刊 Mechanics of Materials 上发表论文

段老师参与完成的论文 “Improved design of fused deposition modeling equipment for 3D printing of high-performance PEEK parts” 在 Mechanics of Materials 期刊发表。段老师为此文章的共同通讯作者。

该文章基本信息如下：

• 标题：Improved design of fused deposition modeling equipment for 3D printing of high-performance PEEK parts

• 作者：Bin Hu, Xianbao Duan*, Zehua Xing, Ziyou Xu, Chun Du, Huamin Zhou, Rong Chen, Bin Shan*

• 摘要：Polyether ether ketone (PEEK) is one of the most commonly used materials in medical transplantation, and additive manufacturing is particularly useful for fabricating transplants as it can be used to form complex, customized parts. The main difficulty in forming PEEK parts using additive manufacturing is the high melting temperature of PEEK materials, which makes parts undergo a large temperature change during forming. This produces large internal stress, warpage, and delamination. Several structural design improvements in the regular fused deposition modeling (FDM) equipment are proposed in present work based on results from finite element simulations and experiments. The nozzle is augmented by a heat collector, which can significantly improve the uniformity of the temperature field during printing and increase the final strength of formed parts. Meanwhile, a two-degree-of-freedom platform is designed to reduce warpage of the forming plate caused by the high ambient temperature. XRD results show that the specimens formed using the improved equipment have higher crystallinity. Mechanical tests show that the warpage rate of a specimen can decrease from 20.4% to 5.0%, and the elastic modulus can increase by 20.1%.

• 期刊：Mechanics of Materials

• 链接：https://www.sciencedirect.com/science/article/pii/S0167663619304028

Mechanics of Materials 影响因子在2018年影响因子为2.958，在中科院分区中属于工程技术大类3区期刊，力学小类2区期刊。