Author(s)

Yoshiaki Kakino

Abstract

High speed, high productive drilling system has been developed using high speed and intelligent machining centre. The Intelligent Machining Systems, which have the database for deciding adequate cutting conditions and controlling parameters and adaptive controlling systems, have been developed. The system uses only internal sensors for the signals to monitor the states of cutting and machine. By using newly developed systems the productivity of drilling was increased to 3-5 times. 1 Introduction Nowadays a lot of high speed and high acceleration machining centres have been developed by many machine tools' builders. For feed drive mechanism in these machining centres, ball screws with high lead and low inertia servo motors, or linear motors are used to obtai

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