CD Skripsi

PENGARUH VARIASI KECEPATAN PUTAR TOOL DAN LEBAR SHOULDER TERHADAP HASIL SAMBUNGAN FRICTION STIR WELDING LEMBARAN HDPE

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Friction stir welding (FSW) is a solid-state welding method that does not
require additional materials, introduced by The Welding Institute of the United
Kingdom in 1991 as a joining technique applicable to polymer materials. The
joining process uses friction generated by a rotating tool pin on the workpiece,
causing the workpiece to melt and bond. This study aims to examine the effect of
tool rotational speed and shoulder width on the welding results of HDPE sheets
by analyzing their tensile strength values. The parameters used are variations in
tool rotational speed of 750 rpm, 825 rpm, and 900 rpm, as well as shoulder
widths of 20 and 30 mm. Other parameters used include a welding speed of 14
mm/min, an embedding depth of 8 mm, and an additional heating element
temperature of 110°C. The testing method used is a tensile test according to
ASTM D638 type III standards. Increasing the tool rotational speed can enhance
the tensile strength of HDPE material; however, excessively high rotational
speeds can damage the material structure and decrease its tensile strength.
Increasing the shoulder width also affects the welding results and causes a
decrease in tensile strength due to the heat spreading too widely. The highest
tensile strength was achieved at a tool rotational speed of 825 rpm and a shoulder
width of 20 mm, amounting to 22.76 MPa, which is 90.39% of the raw material's
tensile strength, with a strain of 10.33% and an elastic modulus of 230.59 MPa.
The lowest tensile strength was obtained at a tool rotational speed of 750 rpm and
a shoulder width of 30 mm, amounting to 20.05 MPa, which is 79.63% of the raw
material's tensile strength, with a strain of 23.82% and an elastic modulus of
124.99 MPa.
Keywords: friction stir welding, high density polyethylene (HDPE), tool
rotational speed, shoulder tool

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1907111282

Penerbit

Pekanbaru : Universitas Riau - F. Teknik - Teknik Mesin., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1907111282

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK MESIN

Info Detail Spesifik

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Pernyataan Tanggungjawab

GUNTUR

Versi lain/terkait

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