PT Journal
AU Sejc, P
   Vanko, B
   Gabrisova, Z
TI REW Application Possibilities for the Production of Combined Metal - Plastic Joints
SO Manufacturing Technology Journal
PY 2021
BP 682
EP 690
VL 21
IS 5
DI 10.21062/mft.2021.082
DE Resistance Element Welding; Soldering; Metal-to-Plastic Joining; Bimetallic Joining Element
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.
ER