Evaluation of Segment Wear Properties of Diamond Saw Blade with Addition of Aluminum 7075 Alloy and Increasing Diamond Concentration


Bulut B.

Transactions of the Indian Institute of Metals, vol.77, no.4, pp.1083-1091, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 77 Issue: 4
  • Publication Date: 2024
  • Doi Number: 10.1007/s12666-023-03212-9
  • Journal Name: Transactions of the Indian Institute of Metals
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1083-1091
  • Keywords: Aluminum alloys, Diamond, Diamond concentration, Diamond cutting tools, Rock cutting process
  • Istanbul Technical University Affiliated: Yes

Abstract

Natural stone production in open mining is carried out in the form of cutting the natural stone from the bedrock with different methods and reducing it to the desired dimensions. Owing to its high hardness, high sharpness, good wear resistance, good high-temperature resistance and good chemical inertness, synthetic diamond has been commonly used as abrasives of grinding or cutting tools. The segments of diamond cutting tools are composed of diamond grain and different metal powders, and the segments are usually produced via powder metallurgy process. The aim of the study is to improve the mechanical properties of the metal matrix with the addition of aluminum 7075 alloy and to improve the performance of diamond cutting tools by reducing the wear rates of the segments with increasing diamond concentration. While characterization studies were carried out with SEM and XRD for microstructure analysis, density measurement, hardness measurement, compression test and abrasion test were performed to determine the mechanical properties. The cutting performance of the samples was also evaluated by on-site field tests on an industrial scale. After the field tests, the diamonds were investigated by SEM. According to the results, the precipitation hardening occurred with the addition of Al7075 alloy. There were coaxial grains with different grain sizes on the surface of the samples. An increase in the mechanical properties of the samples was observed with precipitation hardening. In addition, the cutting performance and service life of diamond tools increased thanks to the increased diamond concentration.