Analisis Variasi Kuat Arus dan Bentuk Kampuh Terhadap Sifat Mekanik Las Plat Baja ASTM A36 Menggunakan Metode Pengelasan SMAW. (Analysis of Variations in Current Strength and Shapeson The Mechanical Properties of ASTM A36 Steel Plate Welding Using The SMAW Welding Method).

Santoso, Moch Irwan Bangun (2024) Analisis Variasi Kuat Arus dan Bentuk Kampuh Terhadap Sifat Mekanik Las Plat Baja ASTM A36 Menggunakan Metode Pengelasan SMAW. (Analysis of Variations in Current Strength and Shapeson The Mechanical Properties of ASTM A36 Steel Plate Welding Using The SMAW Welding Method). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

In the current construction industry, particularly in metal connection, welding has become a prevalent method due to its strength and durability, there are many types of welding processes, one of which is SMAW welding (Shield Metal Wleding) is a type of electric welding that uses electrodes as a weld fill material. The following research is intended to examine the mechanical data of low carbon steel ASTM A36 steel plates that have been subjected to the SMAW welding process with current variations of 110 A, 115 A, and 120 A. This welding also uses variations in the shape of the U, V, and I camps. Because this research is looking for mechanical data from the welding treatment of low carbon steel ASTM A36 steel plate with various with various variations of current and shape of the seam, of course, two tests must be carried out, namely Charpy impact testing and Rockwell hardness testing. Research using SMAW welding is aimed at knowing the effect of variations in current and seam on strength through specified test data. The results obtained from the Charpy impact test, for the price of the lowest impact strength occurred in the variation and ampere voltage V 115 A, namely 88.2 Joules / mm², the highest impact strength price occurred in the variation and ampere voltage U 120 A, namely 152.9 Joules / mm², for the lowest impact energy occurred in the variation and ampere voltage V 115 A, namely 23469.3 Joules, the lowest impact energy occurred in the variation and ampere voltage, namely 14122.6 Joules. Meanwhile, the highest Rockwell HRC test hardness is found in the average variation of U 120 Ampere with a hardness value of 45.3 HRC and V 120 Ampere which is the same as U 120 A, namely with an average of 45.3 HRC. Meanwhile, those with the lowest hardness are found in the average variation of V 110 Ampere with a hardness value of 38.5 HRC and 115 Ampere also has a hardness value that is not much different, namely with an average value of 38.9 HRC. While the highest hardness HRB is found in the variation of U 110 Ampere, V 115 Ampere, U 120 Ampere, and V 120 Ampere with a hardness value of 114 HRB, V 115 Ampere. While those with the lowest hardness are found in the variations of V 110 Ampere, I 115 Ampere, and I 120 A with a hardness value of 111 HRB. And for further researchers to further develop this research more broadly and completely.

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