Japanese

Research Themes

Micro EDM | Micro Cutting | Micro Grinding | Micro USM

Micro Grinding

Drilling of Microholes in Glass by Ultrasonic Grinding Using Ultrasmall-Diameter Tools
The drilling of microholes with a diameter smaller than 0.1 mm by grinding, which has not been reported previously, was attempted. Cemented tungsten carbide micropins were fabricated by electrical discharge machining and used as grinding tools. As a result, the drilling of 30-Ám-diameter microholes in crown glass was successfully carried out.

Paper (Journal of Japan Society for Abrasive Technology, Vol.57, No.2, 2013, pp.102-105)

Ultrasmall-diameter toolDrilled hole

Drilling of Microholes Down to 10 Ám in Diameter Using Ultrasonic Grinding
The drilling of microholes was attempted in crown glass by ultrasonic grinding. Micropins were fabricated by electrical discharge machining and then used as the micro-grinding tools. As a result, the drilling of a microhole 10 Ám in diameter was successfully achieved. This is the smallest-diameter hole drilled by grinding

Paper Paper (KIT only) (Precision Engineering, Vol.38, No.3, 2014, pp.605-610)

Drilled hole 10 Ám in diameter

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