Research on Predicting Ground Results by Computer Simulation

计算机模拟预测地面结果的研究

基本信息

批准号：
06555042
负责人：
YAGISHITA Fukuzo
金额：
$ 0.83万
依托单位：
Numazu College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

项目摘要

It is well-known that the grinding process is significantly affected by a lot of paramaters, that is, grinding conditions, rigidity of grinding machine, property of workpiece material, and characteristics of grinding wheel, in which many abrasive grains distribute randomly. This research has tried to simulate reliably an actural grinding process on common personal computer. The simulating method is based on representing actual grinding process by computer program as faithfully as possible, taking into account working node of active grains, their cutting mechanism, effect of machine rigidity etc. After the computer simulation is applied to both WA (White Alundun) wheel and CBN wheel under several truing-dressing and grinding conditions, the simulated results are compared with actually ground data. Obtained results are summarized as follows :(1) In the simulation, a cutting edge distribution on a grinding wheel periphery is the most important input parameter since the distribution significantly affects ground surface roughness and grinding force.(2) The actual distribution can be precisely presumed by analyzing the roughness data of a carbon plate ground with a plunge cut mode and the simulated results.(3) By decreasing the range of distribution, the ground surface roughness decreases and grinding force increases.(4) In order to accomplish the surface roughness required at high stock renoval rate, a lot of cutting edges on the grinding wheel periphery ought to be produced in optinal distribution by a truing-dressing operation.

众所周知，磨削过程受磨削条件、磨床刚性、工件材料性能、砂轮特性等诸多参数的显着影响，其中许多磨粒是随机分布的。本研究试图在普通个人计算机上可靠地模拟实际磨削过程。模拟方法是基于通过计算机程序尽可能忠实地再现实际磨削过程，考虑活性颗粒的工作节点、切削机理、机床刚性的影响等。将计算机模拟应用于两种WA（White Alundun）后在几种修整和磨削条件下对砂轮和CBN砂轮进行了模拟，并将模拟结果与实际磨削数据进行了比较。得到的结果总结如下：（1）在模拟中，砂轮外围的切削刃分布是最重要的输入参数，因为该分布显着影响磨削表面粗糙度和磨削力。（2）实际分布可以精确通过分析切入式磨削碳板的粗糙度数据和模拟结果推测。(3)通过减小分布范围，磨削表面粗糙度减小，磨削力增大。(4)为了实现表面粗糙度高库存翻新所需的粗糙度为了提高速度，砂轮周边上的许多切削刃应通过修整操作以最佳分布方式产生。