A real-time polishing force control system for ultraprecision finishing of micro-optics
書誌事項
- 公開日
- 2013-10
- 権利情報
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- https://www.elsevier.com/tdm/userlicense/1.0/
- DOI
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- 10.1016/j.precisioneng.2013.01.014
- 公開者
- Elsevier BV
この論文をさがす
説明
Abstract Polishing force condition plays a key role in the ultraprecision finishing of micro-optics because it strongly affects the polishing performance. In this paper, a novel polishing force control system is developed to improve the polishing stability. It is proposed for the first time to precisely control polishing force in real-time and has a simple mechanism which mainly composes of a load cell, a piezo stage and a linear stage. The load cell is used to measure the polishing force, whereas the piezo-stage is applied to adjust the force with nano/micro positioning change. The linear stage driven by a stepper motor is employed to prevent force change beyond the travel range of piezo stage which leads to the system out of control. A PID controller is adopted to calculate the command voltage for driving the piezo-stage based on the measured force. The system enables polishing force to be controlled within a range of 0–200 mN with a resolution of 0.1 mN. Some fundamental experiments are conducted to evaluate the performance of newly developed system. The results indicate that the proposed polishing force control system enables a stable polishing, and the polishing force conditions which generate suitable material removal function are acquired.
収録刊行物
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- Precision Engineering
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Precision Engineering 37 (4), 787-792, 2013-10
Elsevier BV
