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Welding in the World

, Volume 60, Issue 6, pp 1201–1209 | Cite as

A new approach for MIG/MAG cladding with Inconel 625

  • Jair Carlos Dutra
  • Régis Henrique Gonçalves e Silva
  • Cleber Marques
  • Alberto Bonamigo VivianiEmail author
Research Paper

Abstract

This paper presents the development of a new version of the MIG/MAG process for use in cladding. The work continues with what in marketing terms is known as “cold processes.” That is why the validation of this new version is compared with the cold metal transfer (CMT) version. This new version uses alternating current (AC) provided from a power source which has the ability to regulate all the electrical variables, so that it is possible to meet the requirements for reignition of the arc while changing the polarity and also ensure the stability of the metal transfer. The welding tests were aimed at the use of water wall cladding in thermal power plants. The version developed presented characteristics that are common to CMT and interesting for the application of coatings: low welding power and low dilution of the deposited material. Furthermore, the good stability and wettability of the developed process, together with the high productivity in comparison with the CMT version, demonstrate its potential use for applying metallic coatings by welding.

Keywords

Pulsed arc welding AC GMA surfacing Deposited metal Nickel alloys 

Notes

Acknowledgments

The authors gratefully acknowledge the support and generosity of the Tractebel Energy (GDF Suez) Company, the Santa Catarina Federal University, and Brazilian National Agency for Petroleum, Natural Gas and Biofuels.

Supplementary material

40194_2016_371_MOESM1_ESM.avi (20.6 mb)
ESM 1 (AVI 21044 kb)

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Copyright information

© International Institute of Welding 2016

Authors and Affiliations

  • Jair Carlos Dutra
    • 1
  • Régis Henrique Gonçalves e Silva
    • 1
  • Cleber Marques
    • 1
  • Alberto Bonamigo Viviani
    • 1
    Email author
  1. 1.Mechanical Engineering Department, UFSCLABSOLDA—Welding and Mechatronics InstituteFlorianópolisBrazil

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