金刚石与磨料磨具工程2017，Vol.37Issue(3)：15-18,4.DOI:10.13394/j.cnki.jgszz.2017.3.004
氧化铝空心球对树脂结合剂金刚石磨盘磨削蓝宝石的影响
Effect of Al2O3 hollow sphere on properties of resin bond diamond disc in sapphire grinding
史林峰 1韩雪 2郜永娟 1刘权威1
作者信息
- 1. 郑州磨料磨具磨削研究所有限公司, 郑州 450001
- 2. 超硬材料磨具国家重点实验室, 郑州 450001
- 折叠
摘要
Abstract
To improve the lapping effect of sapphire grinding, Al2O3 hollow sphere is added into resin bond diamond grinding disc.Effect of sphere size and volume fraction on strength of the bond and performance of the disc are studied through mechanical test, SEM analysis and actual grinding.Results show that as the size and proportion of sphere increase, the bending strength of the sample decreases, and that when the volume fraction of sphere reaches 30%, sphere size has no obvious effect on the strength.It is also found that efficiency of grinding sapphire is increased through adding Al2O3 hollow sphere, and the surface roughness of sapphire is improved.In conclusion, when volume fraction of sphere is 20%, the grinding disc has best comprehensive grinding performance, whose Ra decreases to 0.249 μm and the efficiency is increased by 82.6% compared with that of non-sphere grinding discs.关键词
空心球粒径/体积分数/抗折强度/磨削效率Key words
hollow sphere size/volume fraction/bending strength/grinding efficiency分类
矿业与冶金引用本文复制引用
史林峰,韩雪,郜永娟,刘权威..氧化铝空心球对树脂结合剂金刚石磨盘磨削蓝宝石的影响[J].金刚石与磨料磨具工程,2017,37(3):15-18,4.
