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ORIGINAL RESEARCH article

Front. Mech. Eng.
Sec. Tribology
Volume 10 - 2024 | doi: 10.3389/fmech.2024.1470507

TRIBOLOGICAL AND INVESTIGATION STUDY OF A DLC-COATED H13 FRICTION DRILLING TOOL ON AZ31B MAGNESIUM ALLOY

Provisionally accepted
Sachin Salunkhe Sachin Salunkhe 1*Mathew Alphonse Mathew Alphonse 2Dr.BUPESH RAJA V.K. Dr.BUPESH RAJA V.K. 3*Lenka Cepova Lenka Cepova 4
  • 1 Gazi University, Ankara, Türkiye
  • 2 Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology, Chennai, Tamil Nadu, India
  • 3 Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, India
  • 4 Faculty of Mechanical Engineering, VSB-Technical University of Ostrava, Ostrava, Moravian-Silesian Region, Czechia

The final, formatted version of the article will be published soon.

    Friction drilling is an innovative method in hole-making for sheet metal applications, thin sheets of conventional structural alloy materials like copper, titanium, steel etc. even though there are other methods, such as thermal distortion for the welding of nuts, riveting of nuts, and threading. For the last hundred years, researchers have focused on studying the development of this technique to maintain strength, hole roughness, hole geometry, hardness etc. It is interested in finding solutions for wear, tool life, and plastic deformation. Friction drilling is also called a green hole-making process because this process uses the frictio n between the rotating tool and the workpiece. In this research, instead of regular HSS and Tungsten Carbide tools, the H13 tool steel is used, because the H13 steel tool has unique chemical compositions like chromium and molybdenum, which give high toughness, hot hardness, and wear resistance. Diamond-like-carbon (DLC) coating has been used in this research to enhance tool life and AZ31B magnesium alloy is used as the work materia l. Initially, in this research, the wear stability of the DLC-coated H13 tool was investigated, and later, the tool surface roughness and hole quality were verified. The material loss observed for the DLC-coated H13 steel tool in the pin-on-disk test was 0.05 g. This investigation used two different diameter tools, namely 3mm and 7mm. Research has concluded that the 7mm tool is better for friction drilling by seeing the roughness and hole quality. However, the conditions were that the spindle should rotate at 4000 rpm and the feed rate of the tool to be at 200 mm/rev.

    Keywords: wear, Friction drilling, Diamond-like-carbon (DLC), H13 Steel Tool, AZ31B alloy

    Received: 25 Jul 2024; Accepted: 23 Sep 2024.

    Copyright: © 2024 Salunkhe, Alphonse, V.K. and Cepova. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Sachin Salunkhe, Gazi University, Ankara, Türkiye
    Dr.BUPESH RAJA V.K., Sathyabama Institute of Science and Technology, Chennai, 600 119, Tamil Nadu, India

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