| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an ultrasonic machining device performing ultrasonic machining by controlling an application time of ultrasonic wave for an ultrasonic machining horn so as to make the application time changeable and, thereby, performing the precise machining processing for a member to be machined. <P>SOLUTION: The ultrasonic machining device 1 includes: a work fixing part for fixing a light guide plate work; the ultrasonic machining horn for subjecting the light guide plate work to ultrasonic machining; a moving mechanism 9 for moving the ultrasonic machining horn; and a control means for controlling the application time of ultrasonic wave to the ultrasonic machining horn based on a depth of a recessed part formed on the light guide plate work, wherein the control means performs the controlling so as to apply ultrasonic waves to the ultrasonic machining horn by a time for obtaining the machining standard depth of the recessed part, thereafter, be moved to a prescribed position and, then, apply ultrasonic waves by a time provided by adding a time for obtaining the machining standard depth of the recessed part to a time for further obtaining a prescribed depth from the machining standard depth of the recessed part. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
