Pengaruh Temperatur Pelat Landasan Selama Proses Friction Stir Welding Terhadap Kekuatan Tarik Sambungan Las Lembaran HDPE
Abstract: The purpose of this
study was to determine the weld ability of HDPE sheets (High Density Polyethylene)
through the method
of welding FSW (Friction Stir Welding). FSW is a new welding process,
where joined of the material occurs in the solid state. Samples were welded with
vertical milling CNC machines, while the type of connection is a butt joint.
This study used three process parameters, two parameters are combined and one
parameter value is constant, the parameters combined are temperature backing plate (30; 70; 110 and 150oC) and the welding tool rotation speed (2200;
2300 and 2400 rpm), while the parameters with constant value is the welding
speed (30 mm / min).In this research experiment conducted observations and
analysis of surface textures welded joints, weld surface temperature during the
process in front of and behind the welding tools, macro-structure of the welded
joints, the maximum tensile strength and fracture tensile test results.From the
results of this study
was obtained that temperature backing
plate during FSW process affects
the maximum tensile strength and homogeneity of HDPE sheets welded joints. The
maximum tensile strength of
welded joints higher is 28.52 MPa
or 95.07% of the maximum tensile
strength of HDPE material, the maximum ultimate tensile strength values were
obtained on the condition temperature backing plate t = 150oC and
the welding tool rotation speed n = 2300 rpm. Heating the material HDPE by
backing plate during FSW process insulator properties of the material that is
an obstacle in the process of forming a perfect weld can be resolved.
Keyword: temperatur backing
plate, friction stir welding, the tensile strength of welded joints, HDPE
sheets
Penulis: Agus Setiawan, Yudy
Surya Irawan, Anindito Purnowidodo
Kode Jurnal: jptmesindd110173
