摘要
提出了利用灰度共生矩阵描述平面SiC磨削中金刚石砂轮表面的纹理变化,研究了金刚石砂轮在磨削1h过程中的磨损情况。对砂轮进行清洗后,将采集的图像灰度级量化至16级,通过提取灰度共生矩阵的角二阶矩、熵、惯性矩和相关性这4种特征值,结合工程陶瓷磨粒的磨损,证明了由于尖角效应的存在,基于裂纹扩展效应的陶瓷切槽-推磨复合式平面磨削技术中金刚石砂轮的磨损主要以底部边缘5mm圆周、砂轮距底部3mm柱面的磨损为主,砂轮剩余柱面的磨损为辅。
A new technique to describe the texture change of diamond grinding wheel surface in plane SiC grinding based on gray level co-occurrence matrix is put forward. The wear of diamond wheel in grinding during one hour is studied. Firstly, the grinding wheel is cleaned. The image of gray level is quantized to 16 level. By calculating the angular second moment, entropy, inertial moment and correlation of the gray total of matrix, combining the wear of engineering ceramic particles, a conclusion is proved. That is the wear of diamond grinding wheel is mainly based on the bottom edge 5 mm circle, the bottom ,3 mm cylinder and grinding wheel residual cylinder is auxiliary owing to the edge chipping in plane SiC Cutting and axial pushing-grinding processing technology based on the crack propagation.
作者
杨绪啟
姚巨坤
田欣利
江宏亮
王立志
YANG Xuqi YAO Jukun TIAN Xinli JIANG Hongliang WANG Lizhi(Department of Equipment Maintenance and Remanufacture Engineering, Academy of Armored Forces Engineering, Beijing 100072, China Department of Mechanical Engineering, Academy of Armored Forces Engineering, Beijing 100072, China)
出处
《新技术新工艺》
2017年第9期54-58,共5页
New Technology & New Process
基金
国家自然科学基金资助项目(51475474)
关键词
灰度共生矩阵
裂纹扩展效应
砂轮磨损
gray level co-occurrence matrix, crack propagation, wheel grinding
