Scholarlink

<p>The Cerchar Abrasivity Test provides engineers with an important method for predicting the impact of hard rock on the tool during machining. The test itself is standardized and based on the evaluation of scratch tests, in which the wear of a&#xa0;scratching pin is determined microscopically.</p><p>In this study, the standardized evaluation method using a&#xa0;reflected-light microscope was compared with an evaluation based on digital measurements of the scratching pins using a&#xa0;3D profilometer. Both methods can be assessed positively in terms of accuracy, precision, reproducibility, and reliability and can be considered equivalent.</p><p>In addition to the scratching pins, the scratch itself was measured and documented using the 3D profilometer. In addition to the scratch length, the scratch volume, the scratch area, and the scratch depth were analyzed. A&#xa0;relationship between the Cerchar Abrasivity Index (CAI) and the scratch volume was demonstrated, and a&#xa0;trend toward a&#xa0;correlation between scratch volume and rock strength was identified, although this could not be clearly confirmed. Further, more extensive studies will be necessary to assess this fact.</p><p>The 3D profilometer has proven itself as a&#xa0;valuable alternative to the reflected-light microscope in the evaluation of Cerchar abrasiveness tests. Its use not only significantly increases the information content of the tests but also allows research engineers to use the measurement results for subsequent analyses thanks to their (image and numerical) digitization.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Digital unterstützte Auswertung von Cerchar-Abrasivitätsuntersuchungen

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月1日

查看全文
  • Stefan Helmut Mandl,
  • Christian Heiss,
  • Markus Kirl

摘要

The Cerchar Abrasivity Test provides engineers with an important method for predicting the impact of hard rock on the tool during machining. The test itself is standardized and based on the evaluation of scratch tests, in which the wear of a scratching pin is determined microscopically.

In this study, the standardized evaluation method using a reflected-light microscope was compared with an evaluation based on digital measurements of the scratching pins using a 3D profilometer. Both methods can be assessed positively in terms of accuracy, precision, reproducibility, and reliability and can be considered equivalent.

In addition to the scratching pins, the scratch itself was measured and documented using the 3D profilometer. In addition to the scratch length, the scratch volume, the scratch area, and the scratch depth were analyzed. A relationship between the Cerchar Abrasivity Index (CAI) and the scratch volume was demonstrated, and a trend toward a correlation between scratch volume and rock strength was identified, although this could not be clearly confirmed. Further, more extensive studies will be necessary to assess this fact.

The 3D profilometer has proven itself as a valuable alternative to the reflected-light microscope in the evaluation of Cerchar abrasiveness tests. Its use not only significantly increases the information content of the tests but also allows research engineers to use the measurement results for subsequent analyses thanks to their (image and numerical) digitization.