ANALISIS SAMBUNGAN LAS TAK SEJENIS SMAW TERHADAP BAJA KARBON 4340 DAN ST 36 DENGAN MENGGUNAKAN METODE TAGUCHI

ISTI, NOVIALITA and Arifin, Amir (2021) ANALISIS SAMBUNGAN LAS TAK SEJENIS SMAW TERHADAP BAJA KARBON 4340 DAN ST 36 DENGAN MENGGUNAKAN METODE TAGUCHI. Undergraduate thesis, Sriwijaya University.

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Abstract

In this study, the authors did the joining of 4340 and ST 36 carbon sheets of steel. The welding method used was SMAW using the Taguchi method, using the results of Analysis of Variance (ANOVA). The results of the connection of dissimilar materials between AISI 4340 and ST 36 showed some welding defects such as porosity and weld distortion. This is due to the specified variable factor. Welding technique also affects the result of the joint. The most influential factor variable on AISI 4340 and ST 36 dissimilar joints with optimal conditions is the type of welding speed electrode. The setting factor level for the selected electrode is A2 (E309) with an average value of 333,693 MPa and an SNR value of 48,801 dB. The setting factor level for welding speed is D2 (4cm/min) with an average value of 353,430 MPa and an SNR value of 50,402 dB. In the HAZ region the grains produced are quite clear, as is the case with the parent metal of the two. In the weld metal area with the E309 electrode, there is a lot of porosity and few grain boundaries. The highest average tensile value was obtained in the 9th experiment, which was 433.193 MPa. With electrode type E309, current type 100 A, and welding speed 4 cm/min.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Analysis Of Variance, Signal to Noise Ratio dan Metode Taguchi.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ1-1570 Mechanical engineering and machinery
Divisions:	03-Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User:	Novialita Isti
Date Deposited:	01 Sep 2021 02:55
Last Modified:	01 Sep 2021 02:55
URI:	http://repository.unsri.ac.id/id/eprint/53154

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