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ANALISIS DISTORSI PENGELASAN DISSIMILAR METAL SS 400 DAN SS 304 PADA SAMBUNGAN LAS FILLET

Dissimilar metal welding between carbon steel and stainless steel has been widely applied in industrial applications to reduce production costs and improve equipment reliability. However, differences in physical, mechanical, and thermal properties between the materials may lead to welding-related issues, particularly distortion in fillet weld joints. This study aims to analyze welding distortion in dissimilar metal joints between SS 400 and SS 304 subjected to plate thickness variation, as well as to examine changes in hardness characteristics and microstructural features influenced by the welding thermal cycle. The welding process was carried out using the shielded metal arc welding technique with an E309-16 electrode at a current of 130 A. The SS 400 plate thickness was fixed at 8 mm, while the SS 304 plate thickness was varied at 4 mm, 8 mm, and 12 mm using a corner joint type. Experimental methods included angular distortion measurement using a dial indicator, Vickers hardness testing, and microstructural observation. The results indicate that increasing the thickness of the SS 304 plate significantly reduced angular distortion, with the highest average distortion of 2.15° observed in the 4 mm plate and the lowest average distortion of 1.19° in the 12 mm plate. Hardness evaluation revealed non-uniform hardness distribution across the welded regions due to non-uniform heating and cooling during welding. Microstructural observation showed microstructural transformations within the heat affected zone as a result of thermal cycling, while the weld metal region showed the presence of austenitic and delta ferrite phases.

Availability
#
Central Library (Reference) T1914352025
T191435
Available but not for loan - Not for Loan
Detail Information
Series Title
-
Call Number
T1914352025
Publisher
Indralaya : Prodi Teknik Mesin, Fakultas Teknik Universitas Sriwijaya.,
Collation
xxix, 90 hlm.; ilus.; 29 cm
Language
Indonesia
ISBN/ISSN
-
Classification
671.520 7
Content Type
Text
Media Type
unmediated
Carrier Type
-
Edition
-
Subject(s)
Prodi Teknik Mesin
Manufaktur — Pengelasan (Welding)
Specific Detail Info
-
Statement of Responsibility
Other version/related
File Attachment
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