Pengaruh Sudut Kemiringan Tool Terhadap Sifat Mekanik dan Struktur Mikro Sambungan Pelat Aa5083 pada Proses Friction Stir Welding
Abstract: The aim of this
research is to study the effect of welding tool tilt in friction stir welding
(FSW) process on the mechanical properties and micro structural of weld joint
on aluminium sheet 5083. FSW process used milling machine and the welding tool
material is Bohler K100 with hardness 59HRc.
This welding process had rotation of spindle 1125 rpm, welding rate
30mm/minute, and depth of plunge 3,9 mm. The welding toolt tilt were varied in
1°, 2°, 3° and 4°. The specimens were tested for tensile test, bending test,
hardness test, macro and micro photograph. The results shows that the highest
tensile strength (312.5MPa) occurs on the tool tilt angle of 3°. The highest buckling
strength for face bending (655.1MPa) and root bending (651.8MPa) occurs on the
tool tilt angle of 2°. The retreating side on average has a higher hardness
than the advancing side. Until tool tilt angle until 3°, the tensile strength
increases and after that the tensile strength decreases. However, the buckling
strength has the highest value at the tilt angle 2°. On the micro photograph,
the higher value of tool tilt angle, the bigger at the grain size in HAZ area.
Unfortunetelly, the tilt angle does not influence to grain size in nugget area.
Penulis: Wisnu Wijayanto, Kuncoro . Diharjo, Triyono
Kode Jurnal: jptmesindd140493
