李亚洲,杨强,彭瑞龙,等.聚醚醚酮及其复合材料激光粉末床熔融成形的研究现状与展望[J].精密成形工程,2023,15(11):46-60.
LI Ya-zhou,YANG Qiang,PENG Rui-long,et al.Research Status and Prospect of Laser Powder Bed Fusion of Polyetheretherketone and Its Composites[J].Journal of Netshape Forming Engineering,2023,15(11):46-60. |
| 聚醚醚酮及其复合材料激光粉末床熔融成形的研究现状与展望 |
| Research Status and Prospect of Laser Powder Bed Fusion of Polyetheretherketone and Its Composites |
| 投稿时间：2023-08-02 |
| DOI：10.3969/j.issn.1674-6457.2023.011.006 |
| 中文关键词: 激光粉末床熔融成形 聚醚醚酮 装备 工艺参数 性能 |
| 英文关键词: LPBF PEEK equipment processing parameters performance |
| 基金项目:国家重点研发计划(2022YFB4600101，2022YFB4600103) |
|
| 摘要点击次数: 1174 |
| 全文下载次数: 593 |
| 中文摘要: |
| 聚醚醚酮(PEEK)及其复合材料因具有优异的力学性能、耐化学腐蚀性及生物相容性而受到广泛关注，然而随着对复杂结构以及个性化PEEK零件的需求日益增加，传统的注塑成形工艺显然已经难以满足高度复杂化与个性化制造的需求。激光粉末床熔融(LPBF)技术为PEEK及其复合材料的成形制造提供了一种新的方法。介绍了激光粉末床熔融工艺的基本原理与PEEK及其复合材料的激光粉末床熔融制备工艺的特点和应用，总结归纳了PEEK及其复合材料的激光粉末床熔融成形装备的发展状况与性能特点，目前的成形装备在预热温度和激光功率等参数方面已经有了很大的提升，可以保证一定的成形精度，但要形成一套成熟的高精密和大尺寸复杂成形系统仍需进一步的研究。基于已有研究，重点阐述了PEEK及其复合材料激光粉末床熔融成形工艺的研究现状，虽然通过温度场和激光参数等成形参数的优化，成形件的性能有了一定的提升，但仍然存在翘曲变形、成形力学性能较低的问题。最后对未来高性能PEEK及其复合材料激光粉末床熔融成形工艺的发展进行了展望。 |
| 英文摘要: |
| Polyetheretherketone (PEEK) and its composites have attracted extensive attention due to their excellent mechanical properties, chemical corrosion resistance and biocompatibility. However, with the increasing demand for complex structures and personalized PEEK parts, the traditional injection molding process has obviously been difficult to meet the requirements of complex and personalized fabrication. Laser powder bed fusion (LPBF) technology provides a new method for manufacturing PEEK and its composites. In this work, the principle of LPBF process and the characteristics and applications of LPBF for PEEK and its composites were introduced. The development and performance characteristics of LPBF equipment for PEEK and its composites were summarized. The current equipment for PEEK and its composites has obtained significant improvements in parameters such as preheating temperature and laser power, guaranteeing the forming accuracy. However, the development of a mature high-precision forming system and the realization of large-sized and complex structure components still require further research. Based on the existing researches, the research status and performance of LPBF forming process for PEEK and its composites is expounded. Although optimization of forming parameters such as temperature distribution and laser parameters has led to some improvement in the performance of the formed components, problems such as warping deformation and lower mechanical properties still exist. The prospects for future development trends of LPBF process for high performance PEEK and its composites are proposed. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
渝公网安备 50010702501719号