Pengaruh Pre-Strain Dan Tegangan Listrik Terhadap Sifat Mampu Las Dan Kekuatan Sambungan Las Titik Beda Material Antara Ss400 Dan Jslaus (J1)
Abstract: In this study,
Effect of pre-strain on the weldability and the strength of dissimilar
resistance spot welded joint between SS400 and J1 was investigated. In the
joining process, electrode pressure and weld time were kept equal and four
different pre-strain (0%;1%1,5%;2%) with four different voltages were chosen.
Microstructure, micro hardness, tensile-shear properties and failure mode of
resistance spot welded joints were examined. As a result of experiment, the
increasing of welding voltage increased the fusion zone size lead to increasing
of tensile load bearing capacity. It also changed the interface failure mode to
the pullout failure mode. It also determined that increasing of pre-strain
decreased tensile load bearing capacity distinctly at low voltage but nearly
same at high voltage and changed the failure mode. Pullout failure mode occured
at all pre-strain level with 3.20V welding voltage and 0% pre-strain with 2.67V
welding voltage.
Penulis: Sutiyono, Triyono,
Nurul Muhayat
Kode Jurnal: jptmesindd140447
