RT Journal Article
SR Electronic
A1 Sejč, Pavol
A1 Vanko, Branislav
A1 Gábrišová, Zuzana
T1 REW Application Possibilities for the Production of Combined Metal - Plastic Joints
JF Manufacturing Technology Journal
YR 2021
VO 21
IS 5
SP 682
OP 690
DO 10.21062/mft.2021.082
UL https://journalmt.com/artkey/mft-202105-0017.php
AB 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.