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Journal of Mechanical Science and Technology

, Volume 31, Issue 5, pp 2487–2495 | Cite as

Optimization of vibratory welding process parameters using response surface methodology

  • Pravin Kumar SinghEmail author
  • S. Deepak Kumar
  • D. Patel
  • S. B. Prasad
Article

Abstract

The current investigation was carried out to study the effect of vibratory welding technique on mechanical properties of 6 mm thick butt welded mild steel plates. A new concept of vibratory welding technique has been designed and developed which is capable to transfer vibrations, having resonance frequency of 300 Hz, into the molten weld pool before it solidifies during the Shielded metal arc welding (SMAW) process. The important process parameters of vibratory welding technique namely welding current, welding speed and frequency of the vibrations induced in molten weld pool were optimized using Taguchi’s analysis and Response surface methodology (RSM). The effect of process parameters on tensile strength and hardness were evaluated using optimization techniques. Applying RSM, the effect of vibratory welding parameters on tensile strength and hardness were obtained through two separate regression equations. Results showed that, the most influencing factor for the desired tensile strength and hardness is frequency at its resonance value, i.e. 300 Hz. The micro-hardness and microstructures of the vibratory welded joints were studied in detail and compared with those of conventional SMAW joints. Comparatively, uniform and fine grain structure has been found in vibratory welded joints.

Keywords

ANOVA Hardness property RSM SMAW Taguchi analysis Vibratory welding technique 

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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Pravin Kumar Singh
    • 1
    Email author
  • S. Deepak Kumar
    • 1
    • 2
  • D. Patel
    • 1
  • S. B. Prasad
    • 1
  1. 1.Department of Manufacturing EngineeringNational Institute of Technology JamshedpurJamshedpurIndia
  2. 2.School of Mechanical SciencesIndian Institute of Technology BhubaneswarBhubaneswarIndia

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