MIMplus Technologies has a proven track record in MIM materials, process and application development. Now, the company is further increasing its market reach and production capability through research-driven material and process developments. As Dr Georg Schlieper explains, the first of the company’s two main areas of current innovation is the production of NdFeB hard magnets, using recycled materials, by MIM. The second is in sinter-based Additive Manufacturing, where MIMplus is working closely with Germany’s Headmade Materials and Israel’s Tritone Technologies on the commercial development of their very distinct production processes.
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BASF SE, the market leader in feedstocks for Metal Injection Molding (MIM), has expanded its feedstock range with the release of Catamold® motion 8620, a low alloy steel feedstock suited to high performance automotive applications. In this paper, the company’s Marie-Claire Hermant, Rudolf Seiler, and Thorsten Staudt introduce the new feedstock and the strategy behind the move to pre-alloyed, water atomised powders. The properties and performance of the new system are compared with those of the company’s existing Catamold 8620 that uses the master alloy approach.
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Whilst many MIM companies choose to purchase commercially available ‘off the shelf’ feedstocks, a significant proportion continue to manufacture their own – or use both routes. Motives can range from a desire to use a proprietary binder composition for specific applications, to simple cost savings. What is critical is that in-house produced feedstocks are manufactured to the highest quality and with excellent batch-to-batch repeatability. In this article, Grant Jamieson, Managing Director of Winkworth Machinery Ltd, reviews the process of mixing, extruding and pelletising MIM feedstocks and introduces a specially-developed machine that combines these three operations.
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Within the programme of the successful Euro PM2020 Virtual Congress, organised by the European Powder Metallurgy Association (EPMA) and held October 5–7, 2020, a technical session, comprising three papers, addressed advanced process developments in Powder Injection Moulding (PIM). In this review, Dr David Whittaker reports on these presentations that addressed the opportunities around single-use moulds, advanced part customisation, and cobalt-free diamond composite for cutting tool applications.
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