Pengaruh Variasi Waktu Tahan Spot Weld Dengan Metode SMAW Terhadap Nilai Kekuatan Geser Dan Struktur Mikro Baja SS400

Firdaus, Luthfan Azies (2026) Pengaruh Variasi Waktu Tahan Spot Weld Dengan Metode SMAW Terhadap Nilai Kekuatan Geser Dan Struktur Mikro Baja SS400. Bachelor thesis, Institut teknologi Kalimantan.

	Text 06221041_cover.pdf Restricted to Repository staff only until 5 October 2028. Download (540kB) | Request a copy
	Text 06221041_statement_of_authenticity (1).pdf Restricted to Repository staff only until 5 October 2028. Download (472kB) | Request a copy
	Text 06221041_publishing_agreement (1).pdf Restricted to Repository staff only until 5 October 2028. Download (474kB) | Request a copy
	Text 06221041_approval_sheet (1).pdf Restricted to Repository staff only until 5 October 2028. Download (334kB) | Request a copy
	Text 06221041_preface.pdf Restricted to Repository staff only until 5 October 2028. Download (331kB) | Request a copy
	Text 06221041_abstract_id.pdf Restricted to Repository staff only until 5 October 2028. Download (270kB) | Request a copy
	Text 06221041_abstract_en.pdf Restricted to Repository staff only until 5 October 2028. Download (309kB) | Request a copy
	Text 06221041_table_of_content.pdf Restricted to Repository staff only until 5 October 2028. Download (1MB) | Request a copy
	Text 06221041_illustrations.pdf Restricted to Repository staff only until 5 October 2028. Download (1MB) | Request a copy
	Text 06221041_tables.pdf Restricted to Repository staff only until 5 October 2028. Download (682kB) | Request a copy
	Text 06221041_notations.pdf Restricted to Repository staff only until 5 October 2028. Download (324kB) | Request a copy
	Text 06221041_chapter_1.pdf Restricted to Repository staff only until 5 October 2028. Download (417kB) | Request a copy
	Text 06221041_chapter_2.pdf Restricted to Repository staff only until 5 October 2028. Download (804kB) | Request a copy
	Text 06221041_chapter_3.pdf Restricted to Repository staff only until 5 October 2028. Download (626kB) | Request a copy
	Text 06221041_chapter_4.pdf Restricted to Repository staff only until 5 October 2028. Download (779kB) | Request a copy
	Text 06221041_conclusions.pdf Restricted to Repository staff only until 5 October 2028. Download (286kB) | Request a copy
	Text 06221041_bibliography.pdf Restricted to Repository staff only until 5 October 2028. Download (321kB) | Request a copy
	Text 06221041_enclosure.pdf Restricted to Repository staff only until 5 October 2028. Download (1MB) | Request a copy
	Text 06221041_Paper.pdf Restricted to Repository staff only until 5 October 2028. Download (498kB) | Request a copy
	Text 06221007_Form.TA-020.pdf Restricted to Repository staff only until 5 October 2028. Download (653kB) | Request a copy

Abstract

Industri otomotif banyak menggunakan metode Resistance Spot Welding (RSW) pada komponen baja tipis, namun memiliki keterbatasan pada biaya peralatan dan fleksibilitas material. Penelitian ini bertujuan menganalisis pengaruh variasi waktu tahan arc spot welding metode Shielded Metal Arc Welding (SMAW) terhadap sifat mekanik dan struktur mikro baja SS400 tebal 0,8 mm. Variasi waktu tahan 4, 5, dan 6 detik menggunakan elektroda E6013 posisi 1G dievaluasi melalui shear tensile test dan analisis struktur mikro. Hasil menunjukkan nilai Ultimate Shear Strength meningkat dari 130,20 menjadi 152,57 dan 155,15 MPa, dengan peningkatan 17,18% (4–5 detik) dan 1,69% (5–6 detik), sehingga waktu tahan 5 detik menjadi kondisi optimum dengan standar deviasi terendah (2,52 MPa). Seluruh spesimen mengalami pull-out failure. Fraksi acicular ferrite berubah dari 35%, 58%, menjadi 52%, ukuran butir weld metal menurun dari 5,20 menjadi 4,08 µm, dan diameter nugget meningkat dari 6,91 menjadi 7,65 dan 7,82 mm seiring bertambahnya waktu tahan. Hasil penelitian menunjukkan bahwa metode SMAW berpotensi menjadi alternatif proses las titik pada aplikasi industri otomotif.

Item Type:	Thesis (Bachelor)
Subjects:	T Technology > TS Manufactures
Divisions:	Jurusan Ilmu Kebumian dan Lingkungan > Teknik Material dan Metalurgi
Depositing User:	Luthfan Azies Firdaus
Date Deposited:	16 Jul 2026 08:12
Last Modified:	16 Jul 2026 08:12
URI:	http://repository.itk.ac.id/id/eprint/27494

Actions (login required)

View Item