Loading...

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

Imgrund, P ; Sharif University of Technology | 2007

363 Viewed
  1. Type of Document: Article
  2. DOI: 10.1007/s00170-006-0666-4
  3. Publisher: 2007
  4. Abstract:
  5. 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. © Springer-Verlag London Limited 2007
  6. Keywords:
  7. Interfaces (materials) ; Micromachining ; Powder metallurgy ; Powder metals ; Stainless steel ; Metal injection molding ; Micro manufacturing ; Micro metal injection ; Injection molding
  8. Source: International Journal of Advanced Manufacturing Technology ; Volume 33, Issue 1-2 , 2007 , Pages 176-186 ; 02683768 (ISSN)
  9. URL: https://link.springer.com/article/10.1007/s00170-006-0666-4