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A Reseatch on Optimum Condition of Gentle Wet Blasting

温和湿喷砂最佳条件的研究

基本信息

批准号：
08650159
负责人：
YAGISHITA Hukuzo
金额：
$ 1.47万
依托单位：
Numazu College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650159/
关键词：
Grinding Dressing Gentle wet blasting Simulation Hertz contact theory Superabrasive wheel Grinding wheel Abrasive particle シミュレーションツル-イング Hertzの弾性接触理論

项目摘要

A computer program has been newly developed in order to simulate a material removal process by gentle wet blasting. After 4 kinds of abrasive particle and 10 kinds of work material are chosen, many tests of gentle wet blasting and computer simulations are excuted. From the considerations based on the comparison of tested results with simulated ones, following results are obtained.1.When abrasive particle is white alundum (WA) or carborundum (C) and work materials are 5 kinds of metal, similated results are comparatively coincide well with tested ones. Therefore, the simulation program is available to predict the blasted result.2.When work material is soft rubber, material removal does not occur because of rebound of particles caused by rubber's elasticity. Blasting by synthetic resin particle unexpectedly makes a crater on the surface of cast iron and aluminum. This phenomenon is predicted thoroughly by the computer simulation.3.A (111) surface of natural diamond is fractured and removed by blasting of white alundum particle and the depth of crater is almost equal to the simulated result.4.In the case of blasting by fine mesh's abrasive particle having mean diameter of 6.0-8.5 mum, the tested result of the maximum depth of crater is lager 20-200 times than the simulated one. In order to reveal the cause of this defference, the research has been continued.

为了模拟温和湿式喷砂的材料去除过程，新开发了一个计算机程序。选择了4种磨粒和10种工作材料，进行了大量的湿式轻爆试验和计算机模拟。通过对试验结果与模拟结果的对比分析，得出以下结论：1.当磨粒为白色刚玉（WA）或碳化硅（C），工件材料为5种金属时，模拟结果与试验结果吻合较好。2.当工作材料为软质橡胶时，由于橡胶的弹性，颗粒会反弹，不会发生材料去除。用合成树脂颗粒进行喷砂，在铸铁和铝的表面意外地形成一个凹坑。3.用白色刚玉颗粒爆破，天然金刚石A（111）面被破碎去除，凹坑深度与模拟结果基本一致; 4.用平均粒径为6.0-8.5 μ m的细网磨料颗粒爆破，最大弹坑深度的实测值是模拟值的20-200倍。为了揭示这种差异的原因，本研究继续进行。