High-Precision Cutting Edge Radius Measurement of Single Point Diamond Tools Using an Atomic Force Microscope and a Reverse Cutting Edge Artifact
High-Precision Cutting Edge Radius Measurement of Single Point Diamond Tools Using an Atomic Force Microscope and a Reverse Cutting Edge Artifact
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DOI：
10.3390/app10144799
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发表时间：
2020-07
期刊：
影响因子：
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通讯作者：
Kai Zhang;Yindi Cai;Y. Shimizu;H. Matsukuma;W. Gao
中科院分区：
文献类型：
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作者：
Kai Zhang;Yindi Cai;Y. Shimizu;H. Matsukuma;W. Gao
本文提出了一种基于刃口反转法，利用原子力显微镜（AFM）和反向刃口人工制品测量单点金刚石刀具高精度刃口半径的方法。反向刃口人工制品是在新设计的纳米压痕系统上，将金刚石刀具压入软金属工件中制成的，此时刀具前刀面和后刀面夹角的平分线垂直于工件表面。利用原子力显微镜测量实际金刚石刀具刃口和反向刃口的形貌。通过所提出的刃口反转方法，可以基于两种原子力显微镜形貌精确评估刃口半径，从而减少原子力显微镜针尖的卷积效应。在所提出的测量方法中，刃口半径测量的准确性受反向刃口人工制品几何精度的显著影响。在纳米压痕系统中，对系统操作进行了优化，以实现对反向刃口人工制品压痕深度的高精度控制。研究了弹性回复和原子力显微镜悬臂针尖半径对刃口半径测量准确性的影响。还对不同刀尖半径的金刚石刀具进行了测量。通过一系列实验证明了所提出的刃口半径测量方法和所设计的纳米压痕系统的可靠性和能力。
This paper presents a measurement method for high-precision cutting edge radius of single point diamond tools using an atomic force microscope (AFM) and a reverse cutting edge artifact based on the edge reversal method. Reverse cutting edge artifact is fabricated by indenting a diamond tool into a soft metal workpiece with the bisector of the included angle between the tool’s rake face and clearance face perpendicular to the workpiece surface on a newly designed nanoindentation system. An AFM is applied to measure the topographies of the actual and the reverse diamond tool cutting edges. With the proposed edge reversal method, a cutting edge radius can be accurately evaluated based on two AFM topographies, from which the convolution effect of the AFM tip can be reduced. The accuracy of the measurement of cutting edge radius is significantly influenced by the geometric accuracy of reverse cutting edge artifact in the proposed measurement method. In the nanoindentation system, the system operation is optimized for achieving high-precision control of the indentation depth of reverse cutting edFigurege artifact. The influence of elastic recovery and the AFM cantilever tip radius on the accuracy of cutting edge radius measurement are investigated. Diamond tools with different nose radii are also measured. The reliability and capability of the proposed measurement method for cutting edge radius and the designed nanoindentation system are demonstrated through a series of experiments.