Tool Type and Hole Diameter Influence in Deep Ultrasonic Drilling of Micro-Holes in Glass

This paper discusses, on the basis of the experimental results for glass deep hole micro-machining, the influence of the hole diameter (100 or 200 m), and the type of tool (wire or drill). The use of drills help to keep a higher mean drilling speed while the cylindrical wire tools provide a higher speed (twice) in the first 20% ofthe drilling depth. This study shows that the drilling speed in glass deep icro-drilling is depending on depth and type of tool used.