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Processing optimization and comprehensive performance on resistance plug welding of dissimilar steel joints

Published online by Cambridge University Press:  13 June 2017

Yaodong Cen
Affiliation:
School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China; and Group Management Department, Baotou Steel (Group) Corp., Baotou 014010, China
Furong Chen*
Affiliation:
School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Congzeng Li
Affiliation:
School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

A well-designed hybrid welding process for resistance plug welding (RPW) was conducted based on TRIP980 high-strength steel and SPCC low-carbon steel. The effects of welding current, welding duration time, electrode pressure and filler diameter on the shear tensile failure loading of the joint were systematically investigated and the related optimal welding parameters were accordingly obtained. The microstructure and mechanical properties of the joint were subsequently analyzed. The experimental results indicated that the welding parameters of welding current, filler diameter, and welding duration time and electrode pressure influencing the shear tensile failure loading of the joint are quite vital. This kind of joint possesses a rounded rectangular nugget and transition region. The atomic diffusion results in the firm joint, the metallurgical bonding between filler and base material is realized through the RPW technique.

Type
Articles
Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Jürgen Eckert

References

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