Industrial Innovations

Industrial Innovations

Quality Improvement of Resistance Spot Welding of a Pressure Vessel by Taguchi Method

Document Type : Original Article

Authors
Ashkan Nouri 1
Amir Mohammad Golmohammadi 2
1 Department of materials science and engineering, Faculty of engineering, Arak university, Arak, Iran.
2 Industrial engineering , Faculty of Engineering, Arak university, Arak, Iran.
10.61186/jii.2.2.180
Abstract
Today, the progress of industries depends on quality optimization, and improving production processes through setting controllable parameters of the process can greatly help this. The present research shows the practical experience gained in the development of the resistance welding quality of a pressure vessel, in which the well-known Taguchi method is used in the design of experiments to minimize the effect of uncontrollable factors on the target value. In this research, the pressure between the electrodes, the size and shape of the electrodes and the working surface (smoothness and cleanliness) were considered as the most important controlled variables. By conducting the designed test in 5 repetitions, the quality of the resistance welding improved significantly. It was observed that among the parameters affecting the quality of spot welding, the welding time has the greatest effect on the strength of the weld. The investigation of the current intensity showed that the increase of this factor as well as the welding time decreases the hardness of the welding center.
Keywords
Quality improvement
Process adjustment
Experiment design
Taguchi method
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Industrial Innovations
Volume 2, Issue 2 - Serial Number 6
Spring 2024
Pages 180-193

  • Receive Date 08 February 2025
  • Revise Date 21 February 2025
  • Accept Date 22 February 2025