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Trial Manufacturing of Ultra-high Removal Nanometer-Smoothness Grinding Machine Based on New Concept

基于新理念的超高去除纳米光滑度磨床的试制

基本信息

批准号：
15360072
负责人：
YASUI Heiji
金额：
$ 9.86万
依托单位：
Kumamoto 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 2004
项目状态：
已结题

项目摘要

The high removal rate ultra-smoothness grinding method which can finish to almost the same smoothness formed by polishing has been recently desired strongly for high efficiency production of high quality components. From the point of view, in the previous report, the existing of limiting smoothness, which can be attained in traverse grinding is discussed theoretically and presented experimentally. On the results, the newly devised ultra-smoothness grinding method based on the new concept is proposed and ascertained to be useful for finishing near the ultra-smoothness surface. The removal rate obtained using horizontal surface grinding, however, is small though the rate is larger than lapping and polishing.To make the removal rate much larger, in the research, the rate in ultra-smoothness grinding method is analyzed firstly in the case of horizontal surface grinding. Based on the analysis, the new type of vertical surface grinder is designed and manufactured on trial. The two kinds of v … More ertical grinders are manufactured. One is reconstructed from the conventional vertical grinder with the disc type of table. The other is newly manufactured and has the ultra-high revolution spindle and the four columns for the high removal rate grinding and high rigid mechanism. Accompanying with the manufacturing, the basic research on the supplying effect of grinding fluid and ultra-high depth of cut of grinding is investigated using the horizontal grinder. In addition, in order to examine the grinding wheel surface condition quickly and precisely, the automatic image processing system is developed. The main conclusions are as follows :(1)Comparing with the horizontal grinder, the two types of the newly manufactured vertical is useful for the ultra-smoothness grinding in much higher removal rate.(2)The type and dilution of grinding fluid have the large influence on the ultra-smoothness grinding of silicon carbide ceramic.(3)Comparing with the conventional grinding method, the newly developed ultra-smoothness grinding method enables the much higher depth of cut of ultra-smoothness grinding.(4)The newly developed automatic image processing system for evaluating the wheel surface condition is available for pursuing quantitatively the wheel conditions in a series of grinding operation processes, that is, truing process, dressing process and grinding process including the grinding process in the occurrence of loading. Less

近年来，为了高品质部件的高效生产，人们强烈需要能够达到与抛光几乎相同的光滑度的高去除率超光滑磨削方法。从这个角度来看，在之前的报告中，对横向磨削所能达到的极限光滑度的存在进行了理论上的讨论，并通过实验提出了这一点。根据结果，提出了基于新概念的新设计的超光滑磨削方法，并确定可用于超光滑表面附近的精加工。然而，采用水平平面磨削获得的去除率虽然比研磨和抛光大，但其去除率却很小。为了使去除率更大，在研究中，首先以水平表面磨削为例对超光滑磨削方法中的去除率进行分析。在此基础上，设计并试制了新型立式平面磨床。制造了两种立式磨床。一种是由传统立式磨床改造而来，工作台为圆盘式。另一种是新制造的，具有超高转数主轴和四立柱，用于高去除率磨削和高刚性机构。配合制造，利用卧式磨床对磨削液的供给效果和超高切深磨削进行了基础研究。此外，为了快速、准确地检测砂轮表面状况，还开发了自动图像处理系统。主要结论如下：(1)与卧式磨床相比，新研制的两种立式磨床可实现更高去除率的超光滑磨削。(2)磨削液的种类和稀释度对碳化硅陶瓷的超光滑磨削影响较大。(3)与传统磨削方法相比，新研制的超光滑磨削方法 (4)新开发的砂轮表面状态评价自动图像处理系统，可以定量地追踪一系列磨削操作过程中的砂轮状态，即修整过程、修整过程和磨削过程，包括发生加载时的磨削过程。较少的