PENGARUH ARUS LISTRIK TERHADAP KARAKTERISTIK FISIK-MEKANIK SAMBUNGAN LAS TITIK LOGAM DISSIMILAR AL-STEEL
ABSTRACT: The resistance spot
weld of dissimilar materials is generally more complex than that of similar
materials due differences in the mechanical, physical and chemical properties
of the base metals. This research aimed is to investigate the mechanical and
physical properties of spot weld of dissimilar materials with various welding
current. A Series of bead plate welds were made on 4 mm thick Al 5083 and 1,2
thick SS 400. The welding current that used were 65, 70 and 75 Amperes. The
physical properties were examined based on the microstructure using Optical
Microscope. The mechanical properties were measured with respect to the
strength and hardness using Universal Testing Machine and Vickers Microhardness
respectively. The microstructures of all resistance spot welded for carbon
steel SS 400 with various welding current were bainit for weld metal and
ferrite and pearlite for base metal and HAZ. Weld metal with current welding 75
A have the highest tensile-shear strength.
Penulis: YUSTIASIH
PURWANINGRUM, M. FATCHAN
Kode Jurnal: jptmesindd130165
