Defect detection of metal injection modeling by micro computed tomography

Wei Yun Huang, Chang Da Chen, Yen Nien Chen, Wei Jen Shih, Chih Han Chang

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

Metal injection molding (MIM) is a combination of metal powder and injection molding technology. The main advantage of this technology for material parts with small and complex shape is to manufacture cost-effective and high-volume products. The main processing steps include mixing, injection molding, debinding, sintering, and hot isostatic pressing (HIP) in order to reduce internal porosity of metals, then to improve mechanical properties. This study is based on non-destructive testing method to determine the possible defect inside the internal structure of the MIM parts. Three types of parts with and without HIP were evaluated investigated in this study. The micro computed tomography (Micro-CT) is used to scan these parts. Based the reconstructed section images from CT, the defects can be identified. It showed that with HIP the much of detects could be reduced. To conclude, Micro CT could be used to detect, in a non-destructive way, the internal detect within MIM parts can be found out in the micro-CT images, so that the manufacturing process could be modified to improve the quality of MIM parts.

原文English
主出版物標題Mechanical and Electrical Technology IV
頁面1445-1448
頁數4
DOIs
出版狀態Published - 2012
事件4th International Conference on Mechanical and Electrical Technology, ICMET 2012 - Kuala Lumpur, Malaysia
持續時間: 2012 七月 242012 七月 26

出版系列

名字Applied Mechanics and Materials
229-231
ISSN(列印)1660-9336
ISSN(電子)1662-7482

Other

Other4th International Conference on Mechanical and Electrical Technology, ICMET 2012
國家/地區Malaysia
城市Kuala Lumpur
期間12-07-2412-07-26

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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