Ultra-Precision Machining of Off-Axis Asymmetric Large-area Reflecting Mirror Using ELID Grinding Processopen accessUltra-Precision Machining of Off-Axis Asymmetric Large-area Reflecting Mirror Using ELID Grinding Process
- Other Titles
- Ultra-Precision Machining of Off-Axis Asymmetric Large-area Reflecting Mirror Using ELID Grinding Process
- Authors
- 정명원; 신건휘; 김건희; 오오모리 히토시; 곽태수
- Issue Date
- 2019
- Publisher
- 한국기계가공학회
- Keywords
- ELID Grinding(ELID 연삭); BK7 Glass(광학유리); Form Accuracy(형상정밀도); Surface Roughness(표면거칠기); Off-Axis(비축)
- Citation
- 한국기계가공학회지, v.18, no.1, pp.9 - 15
- Indexed
- KCI
- Journal Title
- 한국기계가공학회지
- Volume
- 18
- Number
- 1
- Start Page
- 9
- End Page
- 15
- URI
- https://scholarworks.bwise.kr/gnu/handle/sw.gnu/9832
- DOI
- 10.14775/ksmpe.2019.18.1.009
- ISSN
- 1598-6721
- Abstract
- This study focused on the application of ELID mirror-surface grinding technology to the manufacture of off-axis asymmetric large-area reflecting mirrors made of BK7 glass. The size of the parts, such as asymmetric large-area mirrors or lens, made form-accuracy or roughness especially hard to measure after machining because of the measuring range limit of measurement devices. In this study, the ELID grinding system has been set up for mirror-surface machining experiments manufacturing off-axis asymmetric lenses. A measuring method using a reference workpiece has been suggested to measure the form-accuracy and roughness. According to the experimental results, even when using only a reference workpiece, it is confirmed that the surface roughness was 8 nmRa and form-accuracy was 80 nmRMS, with a best fit asymmetric radius when using a grinding wheel of #8,000. It is found that the accuracy of large-area parts could be estimated by the proposed process.
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Collections - 융합기술공과대학 > 기계소재융합공학부 > Journal Articles
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