Abstract
An impact cutting tester was developed to clarify cutting phenomena under ultra high-speed cutting conditions where cutting speed exceeds speed of plastic wave of a workpiece material. The tester composed of three elements: a projectile launching and accelerating system, a cutting processing chamber and the projectile decelerating and collecting system. Pressures of the chamber can be controlled from the atmospheric pressure to the vacuum pressure so that influences of cutting environments on cutting phenomena can be investigated. The flow of the operation of the tester is as follows: a small projectile with built-in a small cutting tool is accelerated by a compressed air, the tool cuts a workpiece that fixed on a dynamometer in the chamber, the chip is captured in the projectile, the projectile is decelerated by a compressed air after finishing cutting process and stopped in the collecting system. This report discloses the tester developed
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