Magnetorheological Jet Finishing of Conformal, Freeform and Steep Concave Optics
✍ Scribed by M. Tricard; W.I. Kordonski; A.B. Shorey; C. Evans
- Book ID
- 104106495
- Publisher
- International Academy for Production Engineering
- Year
- 2006
- Tongue
- English
- Weight
- 216 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0007-8506
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✦ Synopsis
Conformal, freeform and steep concave optics represent important shapes that are diffi cult or impossible to fi nish using conventional techniques due to mechanical interferences and steep local slopes. One way to polish these optics is by using a jet of abrasive/fl uid mixture. Widely used abrasive water jet machining is not applicable for precision polishing because of natural jet instability, which gives an unstable removal function. Theoretical and experimental results in this paper show how this problem can be addressed with a magnetically stabilized jet of magnetorheological fl uid. Polishing results demonstrate the suitability for this technique for precision fi nishing of complex shapes.