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Manufacturing of multi-functional micro parts by two-component metal injection moulding

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Abstract

Several metals and alloys can be used to enhance the mechanical and physical properties of micro parts and components for micromechanical, micro-chemical or sensor applications. Such parts can be produced in series by the powder metallurgical process of micro metal injection moulding (μ-MIM). This paper describes a novel manufacturing route for metallic multi-material micro components, two-component micro metal injection moulding (2C-μ-MIM). Similar to “two-colour” injection moulding of plastics, the process allows the integration of multiple functions in a micro part by simultaneously injecting and joining two materials in one mould. Net-shape parts with solid material interfaces are obtained. In this paper, the 2C-μ-MIM process is exemplified for the combination of a non-magnetic and a ferromagnetic stainless steel (316 L and 17-4PH). It is shown that intact material interfaces of less than 500×500 μm2 can be achieved by careful selection and tailoring of metal powders, injection moulding and co-sintering parameters.

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References

  1. Duong TV (2002) Powder injection moulding for manufacturing metallic miniature parts. PhD Thesis, University Bremen, Germany (in German)

  2. Becker E, Ehrfeld W, Hagmann P, Maner A, Münchmayer D (1986) Herstellung von Mikrostrukturen mit grossem Aspektverhältnis und großer Strukturhöhe durch Röntgentiefenlithographie mit Synchrotronstrahlung, Galvanoformung und Kunststoffabformung (LIGA-Verfahren). Microelectron Eng 4:35–56

    Article  Google Scholar 

  3. Liu Z, Tor S, Khor K, Murakoshi Y, Maeda R (2001) Binder system for micropowder injection molding. Mat Lett 48:31–38

    Article  Google Scholar 

  4. Imgrund Ph, Rota A, Hartwig T, Petzoldt F, Simchi A (2005) Adjustment of materials and sintering processes for MIM of bi-material parts. Proceedings of EuroPM 2005, EPMA, Shrewsbury, pp 307–311

  5. Heaney D, Suri P, German R (2002) Two-color injection molding of hard and soft metal alloys. Proc of the 2002 International Conference on Functionally Graded Materials, MPIF, Princeton, NJ, USA, pp 105–122

  6. Miura H, Yano T, Matsuda M (2000) PIM In-process joining for more complicated shape and functionality. Proc of PM2TEC, 2000, Orlando, FL, USA

  7. Pest A, Petzoldt F, Eifert H, Veltl G, Hartwig T, German R (1996) Composite parts by powder injection molding. Adv Powder Metall Part Mat 5:19.171–19.178

    Google Scholar 

  8. German R (1999) Injection molding of metals and ceramics. Metal Powder Industries Federation, Princeton NJ, USA

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Authors and Affiliations

  1. Fraunhofer Institute for Manufacturing and Advanced Materials (IFAM), 28359, Bremen, Germany

    P. Imgrund, A. Rota & F. Petzoldt

  2. Sharif University of Technology, Tehran, Iran

    A. Simchi

Authors
  1. P. Imgrund
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  2. A. Rota
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  3. F. Petzoldt
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  4. A. Simchi
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Correspondence to P. Imgrund.

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Imgrund, P., Rota, A., Petzoldt, F. et al. Manufacturing of multi-functional micro parts by two-component metal injection moulding. Int J Adv Manuf Technol 33, 176–186 (2007). https://doi.org/10.1007/s00170-006-0666-4

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  • DOI: https://doi.org/10.1007/s00170-006-0666-4

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