Mitsubishi Materials had three patents in 3D printing during Q1 2024. The patent filed by Mitsubishi Materials Corp in Q1 2024 relates to an aluminum powder mixture containing a starting material powder of pure aluminum or an aluminum alloy mixed with 5% to 30% of an aluminum alloy powder with a lower melting point. This mixture accelerates sintering among the aluminum powders, resulting in a higher density aluminum sintered body with high electrical and thermal conductivity. GlobalData’s report on Mitsubishi Materials gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Mitsubishi Materials had no grants in 3D printing as a theme in Q1 2024.
Recent Patents
Application: Aluminum powder mixture and method for producing aluminum sintered body (Patent ID: US20240033819A1)
The patent filed by Mitsubishi Materials Corp. describes an aluminum powder mixture for producing aluminum sintered bodies with enhanced properties. The mixture includes a starting material powder of pure aluminum or an aluminum alloy mixed with 5% to 30% by mass of an aluminum alloy powder with a lower melting point. The aluminum alloy powder contains Si, Cu, and Mg within specific mass percentages, accelerating sintering among the powders to achieve higher density, electrical conductivity, and thermal conductivity in the resulting sintered body. The method for producing the sintered body involves filling the raw material powder into a mold and sintering in a controlled atmosphere at a specific temperature range, resulting in sintered bodies with a relative density of 85% or more and a thermal conductivity of 160 W/mK or more.
The patent also includes various claims related to the composition and processing of the aluminum powder mixture, such as the specific mass percentages of Si, Cu, Mg, and Bi in the alloy powder, the particle size distribution of the powders, and the concentration of oxygen. Additionally, the claims cover different methods for producing the aluminum sintered bodies, including press-molding and selective laser sintering techniques. The methods involve specific sintering conditions and post-processing steps to achieve the desired properties in the final sintered bodies. Overall, the patent aims to provide a novel aluminum powder mixture and methods for producing aluminum sintered bodies with improved density, electrical conductivity, and thermal conductivity for various applications in industries like powder metallurgy and metal additive manufacturing.
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