metal injection molding

In MIM’s post-smartphone era, where is China’s Metal Injection Molding industry going?

Over the last decade, the Metal Injection Molding industry enjoyed dramatic growth on the back of the rise of applications in smartphones. There are indications, however, that the tide is turning and the industry can no longer rely on the types of components that it once produced by MIM in the tens of millions a month. Here, Dr Chiou (Dr Q) reflects on the rise of MIM in the consumer electronics industry and explains what Chinese producers are doing to grow their businesses in Metal Injection Molding’s post-smartphone era. ... Read more »

MIM2023: Industry insights from the International Conference on Injection Molding of Metals, Ceramics and Carbides

The 2023 International Conference on Injection Moulding of Metals, Ceramics and Carbides (MIM2023), organised by the Metal Powder Industries Federation (MPIF)’s Metal Injection Molding Association (MIMA), was held in Costa Mesa, California, USA, from February 27 to March 1, 2023. As well as being the annual meeting point of the US Metal Injection Molding community, the event attracts an international audience and has broadened in scope to include sinter-based Additive Manufacturing processes. Dr Animesh Bose reviews some highlights from the MIM2023 technical programme. ... Read more »

MIM F75 (Co-Cr-Mo) for high-volume production: The impact of sintering conditions on microstructure and properties

This study analyses the potential for large-scale production of Metal Injection Molding (MIM) F75 Co-Cr-Mo alloys using low-carbon atomised powders sintered in industrial-scale continuous furnaces under various atmospheric combinations. The goal was to achieve the required properties without the need for Hot Isostatic Pressing (HIP) or conventional heat treatments, promising MIM a competitive advantage for the high volume production of parts for consumer electronics and beyond. Hao-Ming Chen and colleagues, from Chenming Electronic Technology Corp. (UNEEC), Taiwan, present their findings. ... Read more »

Evaluating Metal Injection Molding as a green production technology

Sustainability is a topic that concerns all of us, from individuals to societies and industries. As we face increasingly difficult environmental challenges, discussions about sustainability and our contribution towards it are ongoing in many areas of our daily lives. This is, of course, also true for the Metal Injection Molding industry. Whilst MIM is already considered a green technology compared to alternative processes, there are still considerable opportunities for improvement that can be identified through life cycle assessment and carbon footprint analysis. Dr Frank Petzoldt and Dr Sebastian Boris Hein consider the complex task of evaluating Metal Injection Molding as a green technology within this context. ... Read more »

Global Markets for Metal Injection Molding: Data and insight from World PM2022 and beyond

How has the global Metal Injection Molding industry weathered the most turbulent years in recent history, and what has the impact been on MIM’s key markets worldwide? In this overview, PIM International’s Nick Williams reports on market data presented at World PM2022, the first Powder Metallurgy World Congress since the COVID pandemic, held in Lyon, France from October 9-13. This is supplemented by other available data sources and insight from conversations with industry leaders at the event. ... Read more »

Opening the door to Metal Injection Molding parts: A case study on the conversion of die cast door hinges

Die casting is a widely used process for the production of Metal Injection Molding-sized parts, but its application is typically for components with lower strength requirements. When the mechanical performance specifications for a die cast component increase, opportunities arise for alternative processes such as MIM to step in. In this case study, Ecrimesa’s Manuel Caballero reviews such a conversion process in which a zinc die cast hinge set is redesigned for production by Metal Injection Molding in 316L stainless steel in order to significantly improve mechanical properties. ... Read more »

A microstructural investigation of 420 martensitic stainless steel processed by Metal Injection Molding

Type 420 martensitic stainless steel covers a wide carbon range of 0.15% to 0.45%. Demand for this material from the 3C, automotive, biomedical and aerospace industries has been increasing thanks to its combination of moderate corrosion resistance, high hardness, and good tensile properties. In this study, Shu-Hsu Hsieh, Dr Chung-Huei Chueh, and I-Shiuan Chen, from Chenming Electronic Technology Corp. (UNEEC), Taiwan, investigated Nb-alloyed 420 produced using BASF SE’s Catamold 420 W feedstock. Decarburisation was examined in samples processed in both a graphite furnace and a molybdenum lined furnace. Microstructure, phase and hardness variations from the sintered state to each specific stage in heat treatment were also explored. Additionally, the influence of niobium on the formation of intergranular compounds, carbides, and carbonitrides was also assessed in each heat treatment stage for comparison. ... Read more »

What drives the success of an industry: chance or strategy? Lessons from the growth of Metal Injection Molding in China

In March 2007, the very first issue of PIM International featured a review of Metal Injection Molding in Asia. China’s MIM industry was estimated as having around twenty MIM firms, many modest in size and of limited capability, with Taiwan accounting for another fifteen. Fast forward less than fifteen years, and Greater China now accounts for half of global Metal Injection Molding production, is a leader in MIM-grade powder production, and is home to a host of production equipment manufacturers. Industry consultant Dr Chiou Yau Hung (Dr Q) assesses just what happened to drive this success: good fortune, good strategy, or a slice of both? ... Read more »

Exploring the subtleties of the formulation and preparation of Metal Injection Molding feedstocks

A technical session, comprising three papers, at the Euro PM2021 Virtual Congress, organised by the European Powder Metallurgy Association (EPMA) and held from October 18–22, 2021, assessed various aspects of the formulation and preparation of feedstocks for Metal Injection Moulding. Dr David Whittaker reports on three papers that addressed solvent debinding efficiency, strategies for enhancing the debinding of polyacetal (POM) feedstocks, and, lastly, an analytical method for enhancing the understanding of the homogeneity of MIM feedstocks and green parts. ... Read more »

SSI Sintered Specialties: Expanding horizons through ‘next-generation’ Metal Injection Molding materials and Binder Jetting

SSI Sintered Specialties, LLC can trace its roots back to the earliest days of Powder Metallurgy in the US. True to its name, that company has over the decades found success through specialisation, in particular stainless steel PM products. This is a theme that continues today, with the company now expanding its horizons through the development of large Metal Injection Molding parts using innovative feedstock technology, and the adoption of metal Binder Jetting. Bernard North visited the company on behalf of PIM International and reports on its plans to remain at the forefront of metal powder based parts production. ... Read more »

In the latest issue of PIM International…

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Extensive MIM, CIM industry and sinter-based AM industry news, plus the following exclusive deep-dive articles and reports:

  • INMATEC Technologies: Celebrating 25 years as a driving force behind Ceramic Injection Moulding
  • A year of change: Turbulence in China’s MIM industry as markets evolve
  • Ceramic Injection Moulding: The impact of variotherm and conformal cooling technology on part quality and process capability
  • The Additive Manufacturing of multi-material and multi-functional ceramic components

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