PENGARUH VARIASI ARUS SPOTWELD DENGAN METODE GTAW TERHADAP SIFAT MEKANIK PLAT AA110

Yudananto, Bernadus Wisnu (2026) PENGARUH VARIASI ARUS SPOTWELD DENGAN METODE GTAW TERHADAP SIFAT MEKANIK PLAT AA110. Bachelor thesis, Institut Teknologi Kalimantan.

	Text 06221069_cover.pdf Restricted to Repository staff only until 4 January 2028. Download (312kB) | Request a copy
	Text 06221069_statement_of_authenticity.pdf Restricted to Repository staff only until 4 January 2028. Download (240kB) | Request a copy
	Text 06221069_publishing_agreement.pdf Restricted to Repository staff only until 4 January 2028. Download (283kB) | Request a copy
	Text 06221069_approval_sheet.pdf Restricted to Repository staff only until 4 January 2028. Download (343kB) | Request a copy
	Text 06221069_preface.pdf Restricted to Repository staff only until 4 January 2028. Download (458kB) | Request a copy
	Text 06221069_abstract_id.pdf Restricted to Repository staff only until 4 January 2028. Download (788kB) | Request a copy
	Text 06221069_abstract_en.pdf Restricted to Repository staff only until 4 January 2028. Download (788kB) | Request a copy
	Text 06221069_table_of_content.pdf Restricted to Repository staff only until 4 January 2028. Download (799kB) | Request a copy
	Text 06221069_ilustrations.pdf Restricted to Repository staff only until 4 January 2028. Download (798kB) | Request a copy
	Text 06221069_tables.pdf Restricted to Repository staff only until 4 January 2028. Download (757kB) | Request a copy
	Text 06221069_notations.pdf Restricted to Repository staff only until 4 January 2028. Download (1MB) | Request a copy
	Text 06221069_chapter_1.pdf Restricted to Repository staff only until 4 January 2028. Download (844kB) | Request a copy
	Text 06221069_chapter_2.pdf Restricted to Repository staff only until 4 January 2028. Download (2MB) | Request a copy
	Text 06221069_chapter_3.pdf Restricted to Repository staff only until 4 January 2028. Download (1MB) | Request a copy
	Text 06221069_chapter_4.pdf Restricted to Repository staff only until 4 January 2028. Download (2MB) | Request a copy
	Text 06221069_conclusions.pdf Restricted to Repository staff only until 4 January 2028. Download (797kB) | Request a copy
	Text 06221069_bibliography.pdf Restricted to Repository staff only until 4 January 2028. Download (825kB) | Request a copy
	Text 06221069_enclosure.pdf Restricted to Repository staff only until 4 January 2028. Download (3MB) | Request a copy
	Text 06221069_paper.pdf Restricted to Repository staff only until 4 January 2028. Download (682kB) | Request a copy
	Text 06221069_presentation.pdf Restricted to Repository staff only until 4 January 2028. Download (2MB) | Request a copy
	Text 06221069_Form.TA-020.pdf Restricted to Repository staff only until 4 January 2028. Download (339kB) | Request a copy

Abstract

Perkembangan industri otomotif menuntut metode penyambungan pelat logam yang efisien dan fleksibel. Penelitian ini bertujuan menganalisis pengaruh variasi arus terhadap sifat mekanik dan struktur mikro sambungan las titik metode GTAW pada AA1100 ketebalan 0,8 mm. Variasi arus yang digunakan adalah 60 A, 70 A, dan 80 A dengan waktu tahan 5 detik dan gas pelindung argon. Hasil menunjukkan bahwa peningkatan arus menurunkan kekuatan tegangan geser, dengan nilai tertinggi pada 60 A sebesar 71,19 MPa, diikuti 70 A sebesar 58,85 MPa, dan terendah 80 A sebesar 42,20 MPa akibat meningkatnya heat input yang menyebabkan distorsi termal. Seluruh spesimen mengalami pull-out failure yang mengindikasikan kualitas sambungan yang baik. Ukuran butir weld metal terkecil diperoleh pada arus 60 A sebesar 7,76 µm, sedangkan butir HAZ terbesar terjadi pada 80 A sebesar 13,05 µm, konsisten dengan mekanisme Hall–Petch. Arus 60 A memberikan kualitas sambungan terbaik dan berpotensi sebagai alternatif RSW pada industri otomotif. Kata Kunci: GTAW, Arus Pengelasan, Las Titik, AA1100, Uji Tegangan Geser, dan Struktur Mikro.

Item Type:	Thesis (Bachelor)
Subjects:	Q Science > QC Physics T Technology > TS Manufactures
Divisions:	Jurusan Ilmu Kebumian dan Lingkungan > Teknik Material dan Metalurgi
Depositing User:	Bernadus wisnu yudananto
Date Deposited:	20 Jul 2026 04:05
Last Modified:	20 Jul 2026 04:05
URI:	http://repository.itk.ac.id/id/eprint/27865

Actions (login required)

View Item