Run-to-run process control of magnetic abrasive finishing using bonded abrasive particles
- Title
- Run-to-run process control of magnetic abrasive finishing using bonded abrasive particles
- Author
- 이성환
- Keywords
- Magnetic abrasive finishing; bonded abrasive particle; run-to-run control; ultraprecision mold surface finishing; design of experiment
- Issue Date
- 2012-12
- Publisher
- SAGE PUBLICATIONS LTD
- Citation
- PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE, v. 226, NO. A12, Page. 1963-1975
- Abstract
- In this study, magnetic abrasive finishing, a polishing method using novel bonded magnetic abrasive particles, is implemented in the nanometer-scale surface polishing of STAVAX (S136) die steel workpieces, which are widely used for precision lens molds. With the aid of run-to-run control, a process control method, nanometer-scale mold surface quality is achieved and maintained over multiple runs. A specially designed magnetic quill equipped with an electromagnet was connected to a computer numerical control machining center to construct the polishing setup. Based on Preston's equation and a set of preliminary experiments, design of experiment and analysis of variance were used to select and evaluate the relevant control parameters for the process. The finishing results show that the magnetic abrasive finishing has a nanometer-scale finishing capability (down to 8 nm surface roughness). Under run-to-run control with the selected parameters, the surface roughness values were successfully maintained below the target values (10 and 50 nm for R-a and R-max, respectively), which shows that the proposed magnetic abrasive finishing scheme is readily adaptable to ultraprecision polishing applications, which are subject to disturbances for a relatively long period of time.
- URI
- https://journals.sagepub.com/doi/10.1177/0954405412462318https://repository.hanyang.ac.kr/handle/20.500.11754/183090
- ISSN
- 0954-4054;2041-1975
- DOI
- 10.1177/0954405412462318
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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