摘要
3D打印成型技术由于快速性、低成本、高集成化、适用于加工复杂零件等显著优点,近几年来得到快速发展,但是目前还存在许多不足,如精度不高、材料性能不稳定等。随着3D打印两相钛合金的应用越来越广泛,国内外针对3D打印两相钛合金的研究也逐渐深入和成熟,通过指导工艺的改进方向来提高其综合性能。本研究针对3D打印中激光快速成型和电子束熔化成型两种技术的工艺进行分析,阐释不同成型工艺条件下两相钛合金宏微观组织特征、力学性能特点,得出打印成型工艺参数、热处理工艺等因素对其影响,为3D打印两相钛合金工程化应用提供借鉴。
3D printing technology has such advantages as rapid prototyping,low cost and high integration,and can be applied to prepare complicated parts. It has advanced fast in the recent years,but still has some disadvantages. For example,its accuracy is not high enough,and the properties of materials by 3D printing are instable. With the extensive application of the two-phase titanium alloys by 3D printing,researches on the two-phase titanium alloys by 3D printing have been put more emphasis on both at home and abroad. In this paper,the principles of laser rapid prototyping and electron beam melting prototyping,two prototyping methods of 3D printing technology,were introduced. The microstructures and properties of the two-phase titanium alloys prepared by laser rapid prototyping and electron beam melting prototyping respectively were analyzed and compared. In addition,the effect of processing parameters and heat treatment on the microstructures and properties of the alloys was also discussed.
出处
《失效分析与预防》
2016年第1期42-46,共5页
Failure Analysis and Prevention
关键词
3D打印
钛合金
激光快速成型
电子束熔化成型
3D printing
titanium alloys
laser rapid prototyping
electron beam melting prototyping
