计量学报2026，Vol.47Issue(4)：542-550,9.DOI:10.3969/j.issn.1000-1158.2026.04.10
基于激光共聚焦显微镜的洛氏硬度金刚石圆锥压头三维形貌校准方法
Three-dimensional Morphology Calibration of Rockwell Hardness Diamond Conical Indenter Based on Laser Confocal Microscopy
摘要
Abstract
A calibration method is proposed for three-dimensional shape evaluation of Rockwell diamond conical indenters based on laser scanning confocal microscopy.High-resolution surface measurements were obtained from four sets of working indenters from different manufacturers and one standard indenter.By acquiring three-dimensional height data at the spherical tip and applying a least-squares fitting algorithm,the influence of sampling window size on the fitted radius was systematically analyzed.The results demonstrate that the proposed method enables comprehensive reconstruction of the indenter tip morphology and provides a quantitative assessment of local geometric deviations.Significant variations in local tip radius were observed under different simulated indentation depths,and distinct trends were identified among indenters from different manufacturers,reflecting the influence of processing techniques on consistency.Furthermore,a technical procedure for indenter morphology calibration was developed,including recommendations for scanning parameters,data fitting,and deviation evaluation.This approach offers a practical and accurate tool for assessing spherical tip of the Rockwell diamond conical indenters,providing essential data support for improving quality control in Rockwell hardness and scratch testing,as well as for enhancing traceability and standardization in hardness measurement.关键词
硬度测量/洛氏硬度/金刚石圆锥压头/三维形貌校准/激光扫描共聚焦/顶端球面半径/几何偏差Key words
hardness measurement/Rockwell hardness/diamond conical indenter/three-dimensional morphology calibration/laser-scanning confocal microscopy/spherical tip radius/geometric deviations分类
通用工业技术引用本文复制引用
侯晓东,金珂羽,崔园园..基于激光共聚焦显微镜的洛氏硬度金刚石圆锥压头三维形貌校准方法[J].计量学报,2026,47(4):542-550,9.基金项目
中国计量科学研究院所自主项目(AKYZZ2411) （AKYZZ2411）
中国计量科学研究院基本科研业务费(AKYRC2401) （AKYRC2401）
