ULTRASONIC KNIFE, PRODUCTION METHOD FOR CUT MOLDED BODY, WORKPIECE CUTTING METHOD, AND ULTRASONIC CUTTING DEVICE

摘要

The purpose of the present invention is to provide an ultrasonic knife (2) that, with regard to the cutting of a molded body that includes carbon fiber and a thermoplastic resin, can stably cut the molded body and can reduce the replacement frequency of a cutting blade. The purpose of the present invention is also to provide a method for using said knife to cut a molded body and produce a cut molded body. Provided is an ultrasonic knife (2) that has a knife edge angle (1) of 45° or more but less than 90°.