Akademik Veri Yönetim Sistemi
METALLOFIZIKA I NOVEISHIE TEKHNOLOGII, cilt.34, sa.9, ss.1283-1292, 2012 (SCI-Expanded)
In a given study, resistance spot welding of automotive steel sheets, which are widely used in the house-goods and car manufacturing industry, is studied. The shear strength, hardness and microstructure of the welded parts are measured in order to find the effects of welding period, welding current, and thickness of the galvanizing under constant applied electrode force pressure. Welding periods are chosen as 22 and 27 cycles, and welding current increased from 4.5 kA to 5.5 kA. The electrode-applied forces are kept constant at 3.5 Bar. The samples are exposed to tensile shear tests, hardness tests and metallographic examinations, and suitable welding parameters are advised to users. The results show that, increasing welding period and thickness of coating, the tensile shear strength and hardness of the welding nugget are increased.