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- W4386448897 abstract "The manufacturing of optical freeform surfaces offers a high potential for optical approaches in the future, since they can make new optical systems lighter and more compact or even enable completely new functions, compared to conventional optics. However, the expanded possibilities go hand in hand with higher complexity in production of freeforms for precision optical applications. This leads to high prices and long delivery times. This paper shows an approach to improve manufacturing of freeforms in small batch sizes with a high degree of customization, by a process chain consisting of (ultrasonic-assisted) pre- and fine grinding combined with ultra-fine grinding using resin bond tools. The process chain is suited for efficient fabrication of optical surfaces. A main focus of the experiments is on reduction of low- and mid-spatial frequency surface deviations, as well as surface roughness. Several different influencing factors in a 5-axis CNC grinding process of fused silica freeforms are investigated and their effects on the resulting surface topography (from the low to the high frequency range of surface deviations) are observed using white light interferometry measurement principles. Various optimization approaches can be concluded." @default.
- W4386448897 created "2023-09-06" @default.
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- W4386448897 date "2023-09-05" @default.
- W4386448897 modified "2023-09-30" @default.
- W4386448897 title "Experimental investigations on the manufacturing of fused silica freeform surfaces by means of fine and ultra-fine grinding" @default.
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- W4386448897 doi "https://doi.org/10.1117/12.2677292" @default.
- W4386448897 hasPublicationYear "2023" @default.
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