ANALISA HASIL PENGELASAN ANTARA GTAW DAN SMAW PADA PEMBUATAN HEATER BOX 200 MA (ALAT PEMANAS BAHAN PLASTIK)

pramana, Muhammad Bagus Nanang (2020) ANALISA HASIL PENGELASAN ANTARA GTAW DAN SMAW PADA PEMBUATAN HEATER BOX 200 MA (ALAT PEMANAS BAHAN PLASTIK). Skripsi thesis, Universitas Pancasakti Tegal.

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Abstract

The purpose of this study was to determine the welding results between GTAW and SMAW which were preheated at 200 ° C, and non-preheating to hardness and tensile strength. This research uses SUS 304 material, the material is given a preheating treatment and welded using GTAW and SMAW welding. The type of electrodes used are E308L and NSN-308 seam V with an angle of 60 °. The results showed that the tensile strength of the preheating SMAW increased by 374,66〖N/mm〗^2compared to the non preheating SMAW of 332,57〖N/mm〗^2and the preheating GTAW material by 424,68〖N/mm〗^2, non preheating GTAW of 354,92〖N/mm〗^2. In the hardness value for non preheating SMAW specimens, the highest increase in weld metal points was 160.66 kg/〖mm〗^2, the lowest non preheating GTAW was 143.33 kg/〖mm〗^2, for the area HAZ (head affaect zone) preheating SMAW welding of 160.33 kg/〖mm〗^2compared to non preheating GTAW of 141.67kg/〖mm〗^2, for the highest base metal in the SMAW preheating welding of 147 , 33 Keywords: SUS 304, welding, preheating, tensile test, hardness.

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