Please use this identifier to cite or link to this item: https://repositori.uma.ac.id/handle/123456789/29808
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dc.contributor.advisorSiregar, Rakhmad Arief-
dc.contributor.authorNainggolan, Maleakhi-
dc.date.accessioned2026-04-24T04:07:02Z-
dc.date.available2026-04-24T04:07:02Z-
dc.date.issued2025-10-06-
dc.identifier.urihttps://repositori.uma.ac.id/handle/123456789/29808-
dc.description64 Halamanen_US
dc.description.abstractAnalisis Kekuatan Lentur Hasil Pengelasan MIG pada Proses Tailor Welded Blank (TWB) Menggunakan Bahan Logam yang Berbeda Kandungan Karbon. Penelitian ini dilatarbelakangi oleh pentingnya pengelasan MIG dalam industri otomotif dan konstruksi, khususnya pada proses Tailor Welded Blank (TWB) yang menyambungkan logam dengan kandungan karbon berbeda. Permasalahan yang dikaji adalah bagaimana pengaruh perbedaan kandungan karbon terhadap kekuatan lentur hasil pengelasan MIG. Tujuan penelitian yaitu membuat spesimen uji, melakukan pengujian lentur statis sesuai standar ASTM E290, dan menganalisis perbedaan kekuatan sambungan las berdasarkan variasi material. Metode penelitian dilakukan secara eksperimental dengan menggunakan plat baja ST-37 dan AISI 1050. Spesimen dibuat melalui proses pemotongan, pengelasan MIG pada arus 90 A, dan pengujian lentur menggunakan Universal Testing Machine. Analisis data dilakukan dengan perhitungan tegangan lentur maksimum berdasarkan rumus uji lentur tiga titik. Landasan teori penelitian meliputi prinsip pengelasan MIG, karakteristik TWB, serta pengaruh kandungan karbon terhadap sifat mekanik logam. Hasil penelitian menunjukkan bahwa spesimen AISI 1050–AISI 1050 memiliki tegangan lentur tertinggi (894,00 MPa), diikuti ST-37–AISI 1050 (876,66 MPa), sedangkan ST-37–ST-37 memiliki nilai terendah (853,78 MPa). Disimpulkan bahwa kandungan karbon tinggi meningkatkan kekuatan lentur sambungan, sedangkan pengelasan material berbeda menghasilkan kekuatan cukup baik meski zona las kurang homogen. Flexural Strength Analysis of MIG Welding on Tailor Welded Blank (TWB) Using Different Carbon Content Metals. This study is motivated by the importance of MIG welding in the automotive and construction industries, particularly in the Tailor Welded Blank (TWB) process which joins metals with different carbon contents. The main problem examined is how the difference in carbon content affects the flexural strength of MIG welds. The objective of this research is to prepare test specimens, conduct static bending tests according to ASTM E290 standards, and analyze the strength variations of welded joints based on different materials. The research method was experimental using ST-37 and AISI 1050 steel plates. Specimens were fabricated through cutting, MIG welding at 90 A current, and bending tests using a Universal Testing Machine. Data analysis was carried out by calculating the maximum flexural stress based on the three-point bending formula. The theoretical basis includes the principles of MIG welding, TWB characteristics, and the influence of carbon content on the mechanical properties of metals. The results showed that AISI 1050–AISI 1050 specimens had the highest flexural stress (894.00 MPa), followed by ST-37–AISI 1050 (876.66 MPa), while ST-37–ST-37 specimens had the lowest value (853.78 MPa). It can be concluded that higher carbon content increases flexural strength, while welding dissimilar carbon steels provides sufficient strength despite less homogeneous heat-affected zones.en_US
dc.language.isoiden_US
dc.publisherUniversitas Medan Areaen_US
dc.relation.ispartofseriesNPM;218130058-
dc.subjectMIG Weldingen_US
dc.subjectTWBen_US
dc.subjectFlexural Strengthen_US
dc.subjectCarbon Contenten_US
dc.subjectKekuatan Lenturen_US
dc.subjectKandungan Karbonen_US
dc.titleAnalisis Kekuatan Lentur Hasil pengelasan MIG pada Proses Tailor Welded Blank (TWB) Menggunakan Bahan Logam yang berbeda Kandungan Karbonen_US
dc.title.alternativeFlexural Strength Analysis of MIG Welding Results in the Tailor Welded Blank (TWB) Process Using Metal Materials with Different Carbon Contentsen_US
dc.typeThesisen_US
Appears in Collections:SP - Mechanical Engineering

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