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相关概念视频

Steel Manufacturing01:26

Steel Manufacturing

638
Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
638

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在金属添加剂制造中控制颗粒结构,使用多功能,廉价的工艺控制系统.

Lova Chechik1, Alexander D Goodall2, Katerina A Christofidou2

  • 1Department of Materials Science and Engineering, The University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK. lchechik@live.co.uk.

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概括

一个新的,负担得起的增材制造 (AM) 或3D打印的工艺控制系统,显著减少了池的变化,并提高了零件的质量. 这一进步提高了金属制造工艺的一致性,有助于认证和更广泛的工业采用.

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相关实验视频

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科学领域:

  • 材料科学 材料科学 材料科学
  • 制造业 工程 制造工程
  • 过程控制 过程控制

背景情况:

  • 增材制造 (AM) 或3D打印在航空航天和医学等领域提供了显著的工业优势.
  • 金属增材制造的一个关键挑战是确保可靠的组件认证的过程一致性.
  • 在AM期间化池的变化可能导致最终部件的微观结构不一致.

研究的目的:

  • 为增材制造开发和整合一个具有成本效益的工艺控制系统.
  • 为了减少金属AM期间池波动的变化.
  • 为了提高3D打印组件的微观结构均性和一致性.

主要方法:

  • 开发和实施一个多功能,廉价的工艺控制系统.
  • 集成系统来监控和管理融化池动态.
  • 对微观结构变化的分析与几何变化和热流的关系.

主要成果:

  • 在谷物面积变化方面实现了高达94%的减少.
  • 成功降低了池波动,从而改善了微观结构的均性.
  • 开发内部控制软件,公开提供,以降低实施障碍.

结论:

  • 开发的工艺控制系统为提高金属AM的一致性提供了重要的,具有成本效益的解决方案.
  • 了解与几何相关的热流机制对于进一步优化至关重要.
  • 该系统的可访问性和有效性促进了反控制在各种制造工艺中更广泛地采用,包括聚合物AM和注塑成型.