Removal of diamond-turning signatures on x-ray mandrels and metal optics by fluid-jet polishing
Removal of diamond-turning signatures on x-ray mandrels and metal optics by fluid-jet polishing
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DOI：
10.1117/12.787960
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发表时间：
2008-07
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影响因子：
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通讯作者：
A. Beaucamp;R. Freeman;R. Morton;Karthik Ponudurai;D. Walker
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文献类型：
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作者：
A. Beaucamp;R. Freeman;R. Morton;Karthik Ponudurai;D. Walker
本文介绍了在去除重复微结构的金刚石车削表面后处理方面的重大进展，这一结果可能对沃尔特型X射线芯棒和金属反射镜的制造产生重大的有利影响。钻石车削在制造轴对称形状方面具有很高的确定性和多功能性，并通过快速刀具伺服、非轴对称、自由形状和微结构表面。然而，金属表面留下的细小车削痕迹限制了其性能。在本文中，我们描述了如何在不显著降低先前车削操作所产生的表面粗糙度或形状的情况下，使用在数控控制下的流体喷射抛光来消除这些结构。
This paper describes a major advance in the post-treatment of diamond-turned surfaces to remove repetitive micro-structure; a result which could have a major beneficial impact on fabrication of Walter-type X-ray mandrels, and metal mirrors. Diamond-turning is highly deterministic and versatile in producing axially-symmetric forms, and through fast-tool servos, non-axially symmetric, free-form and micro-structured surfaces. However, the fine turning marks left in the metal surface limit performance. In this paper, we describe how fluid-jet polishing under CNC control can be used to eliminate these structures, without significantly degrading the surface roughness or form produced by the prior turning operation.