Scholarlink

<p>Lightweight design is very closely associated with additive manufacturing. Besides the design possibilities offered by this technology, the material used also plays a&#xa0;key role. Especially in the LPBF process, the production of the powder and the processing of the material is a&#xa0;major challenge. This applies in particular to magnesium alloys as a&#xa0;lightweight material. Due to its low density and good strength and rigidity properties, this material is ideal for lightweight engineering applications. The basis of this contribution is a&#xa0;risk assessment (including a&#xa0;detailed FMEA and measures to minimize risks) for the processing and handling of magnesium powder in the LPBF process. As part of the practical tests, several test specimens with existing parameters for AZ91D were printed, and their properties (relative density, microstructure and bonding behaviour) were analysed. By adjusting the alloy composition (improved evaporation characteristics) and optimizing the process (e.g. optimum inert gas flow, platform temperature) and the process parameters, it is possible to process magnesium more economically in the LPBF process.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Process Development and Risk Assessment for Processing Magnesium Alloys Using LPBF Technology

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年2月11日

查看全文
  • Franz Haas,
  • Raphael Tiefnig,
  • Marcel Braun,
  • Michael Taschauer,
  • Stephan Steinacker

摘要

Lightweight design is very closely associated with additive manufacturing. Besides the design possibilities offered by this technology, the material used also plays a key role. Especially in the LPBF process, the production of the powder and the processing of the material is a major challenge. This applies in particular to magnesium alloys as a lightweight material. Due to its low density and good strength and rigidity properties, this material is ideal for lightweight engineering applications. The basis of this contribution is a risk assessment (including a detailed FMEA and measures to minimize risks) for the processing and handling of magnesium powder in the LPBF process. As part of the practical tests, several test specimens with existing parameters for AZ91D were printed, and their properties (relative density, microstructure and bonding behaviour) were analysed. By adjusting the alloy composition (improved evaporation characteristics) and optimizing the process (e.g. optimum inert gas flow, platform temperature) and the process parameters, it is possible to process magnesium more economically in the LPBF process.