湖南大学学报（自然科学版）2024，Vol.51Issue(4)：64-70,7.DOI:10.16339/j.cnki.hdxbzkb.2024171
磨料水射流切削皮质骨断面形貌特征研究
Study on Surface Morphology of Cortical Bone Cut Section by Abrasive Water Jet
摘要
Abstract
To explore the cutting mechanism of cortical bone material during abrasive water jet cutting and improve the quality of cutting surfaces in the abrasive jet cutting process,sodium chloride and garnet were used as abrasives to cut cortical bone.The changes in surface roughness under different cutting directions and the microscopic scratch characteristics were compared.The experimental findings demonstrate a characteristic pattern in which the roughness values of the cutting section initially decrease and then increase.Based on these roughness values,the section can be divided into three distinct regions:initial region,smooth region,and rough region.When using sodium chloride as the abrasive,the average roughness values of the cutting surface in the direction perpendicular to the bone unit are 1.74 times and 1.70 times those in the directions parallel and traverse to the bone unit,respectively.When using garnet as the abrasive,the average roughness values of the cutting surface in the direction perpendicular to the bone unit are 1.41 times and 1.55 times those in the directions parallel and traverse to the bone unit,respectively.Numerous micrometer-scale scratches are formed on the cutting surface during the cutting process.The impact of sodium chloride and garnet abrasives on the scratch characteristics of the cutting surface was compared.Compared with garnet,when using sodium chloride as the abrasive,the dimensions of the cortical bone cutting surface scratches are too large,with similar length and width values;the range of scratch depth values is greater.关键词
水射流/磨料/皮质骨/表面粗糙度/微观形貌Key words
water jet/abrasives/cortical bone/surface roughness/micromorphology分类
矿业与冶金引用本文复制引用
杨焘,赵韡,祝锡晶,陈俊伟,潘浩宇..磨料水射流切削皮质骨断面形貌特征研究[J].湖南大学学报（自然科学版）,2024,51(4):64-70,7.基金项目
国家自然科学基金资助项目(51905499),National Natural Science Foundation of China(51905499) （51905499）
中国博士后科学基金资助项目(2019M661067),China Postdoctoral Science Foundation(2019M661067) （2019M661067）
中北大学第十八届研究生科技项目(20221810),18th Graduate Science and Technology Project of North University of China(20221810) （20221810）
