Manufacturing Technology 2021, 21(5):682-690 | DOI: 10.21062/mft.2021.082

REW Application Possibilities for the Production of Combined Metal – Plastic Joints

Pavol Sejč ORCID..., Branislav Vanko ORCID..., Zuzana Gábrišová ORCID...
Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Námestie slobody 17, 812 31 Bratislava, Slovak Republic.

In this paper, innovative resistance element welding (REW) technology for joining galvanized steel sheets to thermoplastics (PMMA) is introduced. The essence of the innovation is in the use of a special bimetallic joining element consisting of the core made of a Sn60Pb solder, and the sleeve made of a Cu tube. During resistance heating, the solder melts, thus allowing the formation of a metallurgical joint with galvanized steel sheet. Since Sn60Pb solder melting occurs at temperatures (from 183 to 190 °C) be-low the thermal decomposition temperature of most thermoplastics (for PMMA above 300 °C), there is no thermal destruction of the PMMA material around the joint. The mechanical fixation of the thermo-plastic material at the overlap joint is provided by the sleeve made of Cu tube which has a substantially higher strength than a Sn60Pb solder.

Keywords: Resistance Element Welding, Soldering, Metal-to-Plastic Joining, Bimetallic Joining Element
Grants and funding:

The results given in this paper were obtained as a part of VEGA 1/0394/19 research project.

Received: April 12, 2021; Revised: September 8, 2021; Accepted: October 21, 2021; Prepublished online: October 21, 2021; Published: November 25, 2021  Show citation

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Sejč P, Vanko B, Gábrišová Z. REW Application Possibilities for the Production of Combined Metal – Plastic Joints. Manufacturing Technology. 2021;21(5):682-690. doi: 10.21062/mft.2021.082.
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