CD Skripsi

Pengaruh Kecepatan Putar Terhadap Daerah Sambungan Las Dan Nilai Kekerasan Menggunakan Mesin Las Gesek Rotary Tegak Bar-Plate

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ABSTRACT
Friction welding is a method of joining materials caused by friction between two materials which utilizes the heat of friction between the two materials, the same or different. This study aims to determine the effect of rotational speed on dissimilar materials on the weld area and hardness values. There are various methods to overcome problems in the process of joining the material, if using the liquid welding method, the resulting penetration does not reach the core of the rod, only around the rod, to solve this problem the friction welding method is used. The materials used are mild steel AISI 1037 and stainless steel 304. From the results of the connection, several test methods were carried out, namely liquid penetrant, macro observations, micro observations and hardness tests. Welding parameters use rotational speed of 2,484 rpm, 2,613 rpm and 4,335 rpm. The results of the liquid penetrant test have no effect on the welding results, on macro observations there is an influence on the weld area, where there is a large enough cavity at a speed of 2.484 rpm with a cavity length of 4.76 mm, then it gets smaller at a speed of 2.613 rpm with a cavity length of 2.63 mm, then at a speed of 4,335 rpm no cavities were found. The results of the hardness test show that there are differences in the value of hardness, where the interface area has a high hardness value, this is due to the heat input that occurs during welding where the interface area has fine grains that affect the hardness value. The highest hardness value at a speed of 4.335 rpm with a hardness value of 148.10 VHN, while the lowest hardness value at a rotational speed variation of 2.484 rpm has a hardness value of 140.44 VHN.
Keywords: friction welding, rotation speed, microstructure, hardness

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1707122805

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Mesin., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1707122805

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

DAUS

Versi lain/terkait

Lampiran Berkas

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