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Renishaw’s AM125 and AM250 additive manufacturing systems feature variable powder delivery, low oxygen content in the build atmosphere and a safe-change filter system to minimize user contact with materials. The machines are designed for rapid material changeover and decreased cost of ownership.
The company’s laser melting additive-metal manufacturing process uses a high-powered fiber laser to produce fully dense metal parts direct from 3D CAD data.
Both machines feature a fully welded vacuum chamber, enabling low-pressure evacuation followed by a recharge with high-purity argon gas. Low gas consumption after the initial chamber flood enables operation at oxygen concentrations below 50 ppm, which is said to be crucial when processing reactive materials, and contributes to material integrity and mechanical performance.
The systems are designed to process a variety of materials, including 316L and 17-4PH stainless steel, H13 tool steel, aluminum Al-Si-12, titanium CP, Ti-6Al-4V and 7Nb, cobalt-chrome, and Inconel 718 and 625. Both machines are designed for rapid material changeover, with the AM125 using a cassette-type materials delivery system and the AM250 a removable hopper. A valve interlock on the AM250 enables extra powder to be added while the process is running, enhancing productivity. A gas knife that clears away reactive, sooty emissions, and a heated build plate ensure safe processing of reactive materials, such as titanium and aluminum.