Formlabs, based in Somerville, Massachusetts, USA, has relaesed Alumina 4N Resin for Additive Manufacturing as well as a new Open Platform option that allows for third-party materials, customisable build settings, and open material manufacturing.
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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.
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Since the very first PM Titanium conference in Brisbane, Australia, in 2011, the PMTi series has been the essential meeting point where technical and commercial advances in the powder-based production of titanium parts are discussed. Encompassing production technologies from Metal Injection Molding to Additive Manufacturing, this year’s event was no different. As Dr Thomas Ebel reports, the technologies involved have moved significantly towards production readiness, but with the ever-present playoff of non-negotiable performance goals against the drive to reduce cost.
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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.
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As exploration of the potential of metal Binder Jetting (BJT) picks up pace, so does the diversity of materials processed using the technology. At the 2022 World PM Congress, organised by the European Powder Metallurgy Association (EPMA) and held in Lyon, October 9-13, a number of presentations reported on developments that looked at a range of materials with commercial potential for BJT, including aluminium alloys, nickel-free stainless steel, hardmetals (cemented carbides) and metallic glass. Dr David Whittaker reports for PIM International.
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