Kuantifikasi Digital dan Analisis Morfologi Spatter pada Pengelasan MAG dengan Variasi Posisi Menggunakan Metode Pemrosesan Citra
DOI:
https://doi.org/10.61844/jemmtec.v5i02.1369Keywords:
Pengelasan MAG, Spatter, Pemrosesan Citra, Posisi Pengelasan, Gravitasi, Connected Component Labeling.Abstract
Spatter formation in Metal Active Gas (MAG) welding process significantly affects deposition efficiency and weld quality. This study aims to digitally quantify the amount of spatter using image processing and analyze the effect of welding position on the resulting spatter morphology. Experiments were conducted on ASTM A36 steel using CO2 shielding gas with various positions 1F (flat), 2F (horizontal), and 3F (vertical up). A digital quantification system was developed using the Connected Component Labeling (CCL) algorithm to detect the number of grains and the coverage area of spatter. The results showed that position 1F produced the highest number of grains, namely 228 grains (100%), followed by position 2F with 217 grains (95.17%), and position 3F with 73 grains (32.01%). Although position 3F has the fewest number of grains, image analysis revealed the presence of coalescence phenomenon, where opposing gravitational forces cause metal droplets to coalesce into a more massive macro spatter. The accuracy of the digital system was validated using a manual weighing method, which showed a coefficient of determination (R2) of 0.965. This study proves that the use of image processing applications can provide more comprehensive spatter characteristic data than conventional methods, which is very useful for optimizing welding parameters in the manufacturing industry.
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