Aluminum powder mixture, powder for metal additive manufacturing, and metal additive manufacturing products
A mixture of aluminum powders with varying melting points and controlled oxygen content addresses sintering challenges, enabling high-density, conductive aluminum sintered bodies for complex shapes in additive manufacturing.
JP7868619B2Active Publication Date: 2026-06-02MITSUBISHI MATERIALS CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- MITSUBISHI MATERIALS CORP
- Filing Date
- 2022-10-04
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing methods for manufacturing complex aluminum shapes face challenges such as difficult sintering due to oxide films, low productivity, and safety concerns with fine powders, and the binder jet method struggles with applying high pressure and maintaining powder stability.
Method used
A mixture of aluminum powders with different melting points, controlled oxygen content, and specific alloying elements is used to promote sinterability, ensuring high density and conductivity through liquid-phase sintering without pressurization.
Benefits of technology
The aluminum powder mixture enables the production of high-density sintered bodies with excellent electrical and thermal conductivity, suitable for advanced metal additive manufacturing products.
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Smart Images
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Abstract
This aluminum powder mixture is a mixture of two or more powders containing aluminum. The oxygen content of the aluminum powder mixture is 0.3 mass% or less and the total content of one or more elements selected from Ca, Cu, Fe, Mg, Mn, Ni, Si, and Zn in the aluminum powder mixture is 0.4-5.0 mass% inclusive.
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