APPLICATION OF ELECTRON BEAM MELTING (EBM) IN ADDITIVE MANUFACTURING OF AN IMPELLER

被引：18
|
作者：
Tan, Xepeng [1 ]
Kok, Yihong [1 ]
Tor, S. B. [1 ]
Chua, C. K. [1 ]
机构：
[1] Nanyang Technol Univ, NTU Addit Mfg Ctr, Sch Mech & Aerosp Engn, Singapore 637372, Singapore
来源：
PROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON PROGRESS IN ADDITIVE MANUFACTURING | 2014年
关键词：
D O I：
10.3850/978-981-09-0446-3_076
中图分类号：
Q813 [细胞工程];
学科分类号：
摘要：
An industrial impeller has been successfully fabricated by using Ti-6Al-4V ELI powder via a newly installed Arcam A2XX electron beam melting (EBM) machine. EBM was found to be preferable to build the circular or complex-shaped parts with thin walls. Several problems that frequently take place during the EBM fabrication are proposed based on the practical experience. It is found that metallization peeling-off, warpage, "swelling" and arc trips are the main reasons resulting in the failures of building jobs. It is suggested to pay close attention to the following aspects: a thorough cleanliness of the entire EBM system before start, a reasonable placement of builds on the start plate, an optimized design on geometries, etc., for a successfully built part.
引用
收藏
页码：327 / 332
页数：6
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