• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Advanced optics for defense applications: UV therough lwir II >Progress on High-Performance Rapid Prototype Aluminum Mirrors
【24h】

Progress on High-Performance Rapid Prototype Aluminum Mirrors

机译：高性能快速原型铝镜的研究进展

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Near net shape parts can be produced using some very old processes (investment casting) and the relatively new direct metal laser sintering (DMLS) process. These processes have significant advantages for complex blank light-weighting and costs but are not inherently suited for producing high performance mirrors. The DMLS process can provide extremely complex lightweight structures but the high residual stresses left in the material results in unstable mirror figure retention. Although not to the extreme intricacy of DMLS, investment casting can also provide complex lightweight structures at considerably lower costs than DMLS and even conventional wrought mirror blanks but the less than 100% density for casting (and also DMLS) limits finishing quality. This paper will cover the progress that has been made to make both the DMLS and investment casting processes into viable near net shape blank options for high performance aluminum mirrors. Finish and figure results will be presented to show performance commensurate with existing conventional processes.
机译：可以使用一些非常古老的工艺（精密铸造）和相对较新的直接金属激光烧结（DMLS）工艺来生产接近最终形状的零件。这些工艺对于空白毛坯的轻量化和成本具有显着的优势，但并不固有地适合于生产高性能反射镜。 DMLS工艺可以提供极其复杂的轻质结构，但材料中残留的高残余应力会导致镜面形状保持不稳定。尽管不是DMLS的极致复杂性，熔模铸造也可以以比DMLS甚至传统的可变形镜坯低得多的成本提供复杂的轻质结构，但是铸造（以及DMLS）的密度不足100％限制了精加工质量。本文将介绍在使DMLS和熔模铸造工艺成为高性能铝镜的可行的接近净形坯料选择方面所取得的进展。将提供表面处理和图形结果，以显示与现有常规工艺相当的性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号