FRICTION STIR WELDING OF NYLON -6: EFFECT OF PROCESS PARAMETERS ON MECHANICAL AND MICROSTRUCTURAL PROPERTIES

Authors

  • N. Ethiraj Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute – University, Madhuravoyal, Chennai, 600 095, Tamil Nadu, India http://orcid.org/0000-0002-7174-5443
  • T. Sivabalan Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute – University, Madhuravoyal, Chennai, 600 095, Tamil Nadu, India
  • C. Vijaya Raghavan Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute – University, Madhuravoyal, Chennai, 600 095, Tamil Nadu, India
  • Shubham Mourya Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute – University, Madhuravoyal, Chennai, 600 095, Tamil Nadu, India

DOI:

https://doi.org/10.11113/jt.v79.10210

Keywords:

Friction stir welding, nylon-6, process parameters, mechanical properties, microstructural properties

Abstract

Friction stir welding (FSW) is solid state joining process with more advantages than that of fusion welding. Nylon -6 is one of the engineering plastics used widely in various industrial applications. The main aim of this research work is to investigate the effect of tool rotational speed and tool traversing speed on the mechanical and microstructural properties of the nylon-6 butt welded joints made by FSW. The FSW process was performed in a computer numerically controlled (CNC) vertical milling machine using a cylindrical tool with threaded pin made of heat treated high carbon high chromium (HCHCr) steel. The tensile testing and microscopic examinations were carried out to study the mechanical and microstructural properties of the welded joints. In visual inspection, it is observed that the excessive flashes are observed on either sides of the weld line in all cases. From the results, it is observed that the maximum tensile properties are achieved in a joint made which is approximately 18% and 26% of the parent material’s ultimate tensile strength (UTS) and yield strength (YS) respectively with the tool rotational speed 1200 rpm and the tool traversing speed of 30 mm/min within the experimented process parameters. Overall, the tensile properties of the welded joints made using the experimented process parameters are very much lower than the parent material.

Author Biographies

  • N. Ethiraj, Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute – University, Madhuravoyal, Chennai, 600 095, Tamil Nadu, India

    Professor,

    Department of Mechanical Engineering

  • T. Sivabalan, Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute – University, Madhuravoyal, Chennai, 600 095, Tamil Nadu, India

    Assistant Professor,

    Department of Mechanical Engineering

  • C. Vijaya Raghavan, Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute – University, Madhuravoyal, Chennai, 600 095, Tamil Nadu, India

    B.Tech Student

    Department of Mechanical Engineering

  • Shubham Mourya, Department of Mechanical Engineering, Dr.M.G.R Educational and Research Institute – University, Madhuravoyal, Chennai, 600 095, Tamil Nadu, India

    B.Tech Student

    Department of Mechanical Engineering

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Published

2017-08-28

Issue

Vol. 79 No. 6: September 2017

Section

Science and Engineering

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How to Cite

FRICTION STIR WELDING OF NYLON -6: EFFECT OF PROCESS PARAMETERS ON MECHANICAL AND MICROSTRUCTURAL PROPERTIES. (2017). Jurnal Teknologi (Sciences & Engineering), 79(6). https://doi.org/10.11113/jt.v79.10210