| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2019: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2018: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
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| Outline of Final Research Achievements |
The purpose of this research is to develop a crack suppression control technology in ultra-precision grinding of optical lenses. Firstly, a grinding condition monitoring method that classifies the grinding status into three by using the servo information of each axis and the AE sensor. Then, a system is constructed, which automatically adjusts the override of the translational axis and the work spindle based on the classified result. From the result of the crack suppression control test, it is clear that micro cracks are perfectly suppressed in ultra-precision grinding of optical materials by changing the override according to the classified grinding status.
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