| 摘要 |
PROBLEM TO BE SOLVED: To provide a drilling device of a low rigidity composite material capable of performing stable automatic drilling without deformation of a material in the drilling even in the case of the drilling of the low rigidity composite material using a fiber-reinforced plastic plate such as a CFRP plate.SOLUTION: A drilling device of a low rigidity composite material comprises: a load cell 3 which measures a cutting resistance value, and converts the cutting resistance value into an electric signal to be output; a controller 6 which compares cutting resistance data measured by the load cell 3 with a stored cutting resistance limit value, discriminates which of an aluminum plate 8, a titanium plate 9, and a reinforced plastic plate 10 a material to be processed is, and determines cutting speed and feeding speed of a drill 1; and a motor 2 which drives the drill 1 at the determined cutting speed and feeding speed. |
