这项研究提出了一种可以产生一个悬垂锐角转角的新的加工方法. 对于传统的加工方法，甚至是3 到5轴放电加工而言，加工垂直面上的的锐角转角是很难的，尤其是当其表面有不同的角度的时候。这是受进给方向和机床的电极结构必须与目标的轮廓对称的限制. 在本研究中,我们试图采用新的加工方法来加工外表面的锐角转角. 6轴控制加工适用于以任意位置和任意姿势顺着工件设置一非回转刀具。在切削过程中，当刀具沿着进给方向切削时，超声振动被应用在刀具的切削边缘. 当进行切削的时候，6轴(X、Y、Z、A、B和C)顺着刀具在某一点的姿势同时移动。从实验结果中发现五轴控制超声振动切削能在垂直面产生一锐角转角。
关键字:六轴控制切割、计算机辅助设计/计算机辅助制造系统，微型钻,垂直锐角转角,超声振动刀具。
Manufacture of Overhanging Sharp Corner by Means of 6-Axis Control Machining with the Application of Ultrasonic Vibrations
feliciano H.JAPITANA**,koichi MORISHIGE**,shugo YASUDA** and yoshimi TAKEUCHI
The study proposes a new machine method to creat an create an overhanging sharp corner. Sharp corners on overhanging surfaces are difficult to machine in conventional way or even in 3 to 5-aixs EDM especially if the surfaces have different angles. This is due to the limitation of the feed direction and the structure of the electrode wherein it must be symmetrical with the target shape. In present research, we try to machine the sharp corner with overhanging surfaces using the new machining method. The 6-axis control machining is applied to set a non-rotational tool at an arbitrary position with arbitrary position with arbitrary attitude against the workpiece. During cutting, the ultrasonic vibration is applied on the cutting edge of the tool, while the tool travels along the feed direction. As the cutting is performed, the 6-axis (X,Y,Z,A,B ) move simultaneously, depending on the tool attitude at a certain cutting point. Form the experimental results, it is shown that the 6-axis control ultrasonic vibration cutting is capable of producing a sharp overhanging surface.
Key Words: 6-axis Controlled Cutting, CAD/CAM System, Bore Byte Tool, Overhanging Sharp Corner, Ultrasonic Vibration Cutting Tool
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