蔡引娣

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:女

毕业院校:日本东北大学

学位:博士

所在单位:机械工程学院

学科:机械电子工程. 机械制造及其自动化. 精密仪器及机械

办公地点:大连理工大学机械工程学院6118

电子邮箱:caiyd@dlut.edu.cn

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An ultra-precision tool nanoindentation instrument for replication of single point diamond tool cutting edges

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论文类型:期刊论文

发表时间:2018-05-01

发表刊物:MEASUREMENT SCIENCE AND TECHNOLOGY

收录刊物:SCIE、EI

卷号:29

期号:5

ISSN号:0957-0233

关键字:nanoindentation; replication; single point diamond tool; cutting edge sharpness; measurement

摘要:Precision replication of the diamond tool cutting edge is required for non-destructive tool metrology. This paper presents an ultra-precision tool nanoindentation instrument designed and constructed for replication of the cutting edge of a single point diamond tool onto a selected soft metal workpiece by precisely indenting the tool cutting edge into the workpiece surface. The instrument has the ability to control the indentation depth with a nanometric resolution, enabling the replication of tool cutting edges with high precision. The motion of the diamond tool along the indentation direction is controlled by the piezoelectric actuator of a fast tool servo (FTS). An integrated capacitive sensor of the FTS is employed to detect the displacement of the diamond tool. The soft metal workpiece is attached to an aluminum cantilever whose deflection is monitored by another capacitive sensor, referred to as an outside capacitive sensor. The indentation force and depth can be accurately evaluated from the diamond tool displacement, the cantilever deflection and the cantilever spring constant. Experiments were carried out by replicating the cutting edge of a single point diamond tool with a nose radius of 2.0 mm on a copper workpiece surface. The profile of the replicated tool cutting edge was measured using an atomic force microscope (AFM). The effectiveness of the instrument in precision replication of diamond tool cutting edges is well-verified by the experimental results.