KEKUATAN PUNTIR DAN POROSITAS HASIL SAMBUNGAN LAS GESEK ALMG-SI DENGAN VARIASI CHAMFER DAN GAYA TEKAN AKHIR
ABSTRACT: Friction welding is
the most suitable method for joining aluminum alloys. Aluminum alloys have
limitations heat to concentrate only in weld area when used arc or gas welding.
That causes it is has good thermal conductivity. The parameters that influence
on friction welding are friction time, compressive force, upset force,
rotational speed, and chamfer angle. The purpose of the research was to know
influence of chamfer angle and upset force on the Al-Mg-Si. The chamfer angles
variated 0, 15°, 30°, 45° and upset force variated 157 kgf, 185 kgf and 202
kgf. Specimens were friction welded with rotation speed of 1600 rpm,
compressive force 123 kgf for 120 seconds, and upset force variation by 157,
185, 202 kgf for 120 seconds. In addition torsion and porosity testing were
also performed on friction welding product. Results showed that specimens with
a chamfer angle 15 ° in various upset force has maximum shear strength, so were
on specimens with a chamfer angle 15 ° has minimum percentage of porosity in
various upset force.
Penulis: Dicky Adi Tyagita,
Yudy Surya Irawan, Wahyono Suprapto
Kode Jurnal: jptmesindd140184
