Research Status and Developing of Metal Injection Molding

Abstract:

Metal injection molding(MIM) is a high efficient and near net shape manufacturing technology, which is appropriate for parts of small size and complex shape. MIM provides a viable method to fabricate metal and metal matrix composites with discontinuous reinforcements, and micro metal injection molding (μMIM) is applied to manufacturing products at micro scale. The status of the research and development of MIM and μMIM are reviewed. Processes including mixing, injection molding and subsequent debinding and sintering are summarized. And technical characteristic, injection processing and application of μMIM are introduced. The disadvantages in mixing, injection molding and debinding processes limit MIM to fabricating components with small size, low precision and mechanical properties, and it is necessary to prevent the powder from reuniting and avoid any oxidation and impurity during μMIM process. Further investigations in these areas will give rise to being explored of full potential of MIM technology.

• Periodical: Advanced Materials Research (Volume 629)
• Pages: 100-104
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.629.100
• Online since: December 2012
• Authors: Yi Qiang He, Bin Qiao, Jian Ming Yang, Li Chao Feng
• Keywords: Metal, Metal Injection Molding (MIM), Near-Shape, Powder

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