权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Production of three-dimensional and free-form texture with synchronous multi-axes vibration tool

利用同步多轴振动工具制作三维自由形态纹理

基本信息

批准号：
15360073
负责人：
MORONUKI Nobuyuki
金额：
$ 9.09万
依托单位：
Tokyo Metropolitan University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

This study aims to establish a new process to produce a wide variety of textured surfaces with three-dimensional vibrating tool. The principle is the copying of the tool locus and its geometry. The results are summarized as follows :1. Ductile machining of glassIt was found that ultrasonic vibration tool, 0.1mm diameter, can cut low-melting-temperature glass with supplying only water. In the abrasive machining, not only the tool wear was severe but the finished surface was rough. However, in cutting, the wear was well inhibited and smooth surface was obtained.A new method for touch sensing between tool and workpiece was proposed where the harmonics components of the force sensor signal was utilized. This signal can be used to monitor the process, for example the detection of chipping.2. Texturing with multi-axes vibration toolMulti-axes vibration was applied to the tool, pushing the nodal point of the ultrasonic vibration system by two piezoelectric actuators perpendicularly. The machining results of glass elucidate the validity of the principle It was found that the crosstalk between each axis-motion and elastic deformation of the system cannot be neglected.3. Improvement of accuracy and resolutionA new tool vibrating system was constructed in which five piezo-actuators were used to keep both the system symmetric and stiff. The tool was change to single-crystal diamond with deterministic profile. The workpiece was also changed from glass to paraffin to decrease machining force. Typical texture produced was a groove with 1 micron width and 1.7 micron depth and the groove had sinusoidal profile with 10 micron pitch and 5 micron amplitude. The depth of the groove was also modulated by changing axial vibration of the tool.

本研究旨在建立一种利用三维振动刀具制造多种织构表面的新工艺。其原理是复制刀具轨迹及其几何形状。主要研究结果如下：1.玻璃的延性加工研究发现，直径为0.1mm的超声振动刀具在只供水的情况下，就可以切割低熔点玻璃。在磨削加工中，不仅刀具磨损严重，而且加工表面粗糙。提出了一种利用力传感器信号中的谐波分量进行刀具与工件接触传感的新方法。该信号可用于监控过程，例如检测碎屑。2.多轴振动毛化工具多轴振动施加在工具上，通过两个压电驱动器垂直推动超声振动系统的节点。玻璃的加工结果验证了该原理的正确性，发现系统各轴运动与弹性变形之间的串扰不可忽略.提高振动精度和分辨率构造了一种新型的刀具振动系统，该系统采用五个压电作动器来保持系统的对称性和刚性。将刀具改为具有确定轮廓的单晶金刚石。工件也从玻璃改为石蜡，以减少加工力。所产生的典型纹理是具有1微米宽和1.7微米深的凹槽，并且该凹槽具有10微米节距和5微米振幅的正弦曲线轮廓。通过改变刀具的轴向振动，可以调节槽深。