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ANALISA SIFAT MEKANIS TERHADAP PENGELASAN PLAT TITANIUM ALLOY DENGAN METODE LASER WELDING MENGGUNAKAN DAYA LASER POWER 1100W

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Titanium alloys are widely used in aerospace, biomedical, and manufacturing industries due to their high strength-to-weight ratio and excellent corrosion resistance. However, welding titanium alloys remains challenging because of their high sensitivity to heat input, which significantly affects mechanical properties and microstructural characteristics. This study aims to analyze the effect of welding speed on the mechanical properties and weld characteristics of titanium alloy plates joined using laser welding with a laser power of 1100 W. Welding speeds of 1 mm/s, 3 mm/s, and 5 mm/s were applied. The experimental investigation included angular distortion measurement, Vickers hardness testing, microstructural observation using Scanning Electron Microscopy (SEM) combined with Energy Dispersive Spectroscopy (EDS), as well as macrostructural and fracture morphology analysis. The results indicate that higher welding speeds result in lower angular distortion due to reduced heat input and shorter thermal exposure. The Heat Affected Zone (HAZ) exhibits the highest hardness values compared to the base metal and fusion zone, which is attributed to rapid thermal cycles during the laser welding process. SEM–EDS analysis confirms that titanium remains the dominant element in the weld region with relatively low impurity levels. This study demonstrates that appropriate welding speed selection in laser welding is crucial for minimizing distortion and improving the overall quality of titanium alloy welded joints

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Detail Information

Series Title

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Call Number

T1923012025

Publisher

Indralaya : Prodi Teknik Mesin, Fakultas Teknik Universitas Sriwijaya., 2025

Collation

xxix, 39 hlm.; ilus.; 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

671.521 207

Content Type

Text

Media Type

unmediated

Carrier Type

-

Edition

-

Subject(s)

Prodi Teknik Mesin
Pengelasan Laser

Specific Detail Info

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Statement of Responsibility

KA

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