![]() ![]() The increasing demands of lifting lugs can be attributed to the rapid advancement of shipbuilding and offshore-structure production technologies and an exponential increase in the size of the block units of ship structures. Therefore, after analyzing the metal microstructure, hardness value, and chemical composition after the removal of the lugs, most of the properties of the welding wire and base metal were still present, and the lug did not have any influence on the physical properties of the base metal. This is because the weld metal melted and penetrated into the base material as seen from the cross-section of the macro.
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