On 30 June 2020, Antarctic Bear learned that EOS, the global leader in industrial-grade metal 3D printing, recently launched eight new metal powders and processes that can be used in its M 290, M 300-4 and M 400-4 3D printing systems, further expanding its range of additive manufacturing materials, including 1 PREMIUM and 7 CORE products.
In 2019, EOS introduced a material and process technology maturity classification system, which features material readiness (TRLs).The TRL system is designed to assist manufacturers in successfully making the leap to mass additive manufacturing production by providing a standardized, data-backed indicator.
Hanna Pirkkalainen, Product manager for EOS Metal Materials, explains: “Depending on specific application requirements, customers can choose between CORE materials (TRL 3 and 5), which focuses on early market access for new materials, and PREMIUM materials (TRL 7-9), which places particular emphasis on repeatable part quality in mass production.”
The new TRL 7 material for M 290 is ToolSteel 1.2709.It is described as an ultra high strength martensitic aging steel suitable for high stress forming applications.The steel has excellent fatigue resistance and improved polishing properties that can be fine-tuned by heat treatment after 3D printing.Recommended for plastic injection molding, extrusion tools, hot pressing tools, die casting tools and other fields.
The core material
The M 290 system also received three new CORE products -AlSi10Mg, Ti64 Grade 5 and Ti64 Grade 23.AlSi10Mg’s new 60 micron process, classified as TRL 3, has faster printing efficiency, better generability and new heat treatment capability to improve ductility and is recommended for applications with key cost-effectiveness requirements.
Two new 80 micron processes for titanium alloys (also suitable for the M 400-4 system) have been optimized for rapid production of parts with similar forging properties to the TI-64.Both alloys have low density, high strength and excellent corrosion resistance, making them suitable for use in aerospace and automotive components.
Finally, the M 300-4 system has obtained the 40-micron process (TRL 3) of nickel alloy IN718 and the 50-micron process (TRL 3) of Martensite aging steel MS1.Inconel is a precipitation-hardened nickel-chromium alloy with high tensile strength and excellent fatigue and creep resistance at temperatures up to 700℃.It is commonly used in high-stress, high-temperature applications, such as gas turbine engine components.MS1 material also has excellent mechanical properties, post-hardness can reach more than 50HRC, applied to injection mold, etc.
New powders are constantly being used in additive manufacturing, which leads to a series of new technology applications.In June 2020, Amaero HOT Al, a metal additive manufacturing specialist, announced that its high-performance 3D-printed aluminum alloy Amaero HOT Al had entered the fourth stage and was in the final stage of international patent approval.This material has high scandium content and can be used for heat treatment and aging hardening after printing.
Protolabs has introduced a new cobalt-chromium superalloy for its metal laser sintering process.The digital prototype company believes the heat-resistant, wearable and corrosion-resistant material will disrupt industries including oil and gas.
Compiled from 3Dprintingindustry