Friction stir spot welding of low-carbon steel using an assembly-embedded rod tool
作者： Ming-Jer Hsieh , Yuang-Cherng Chiou , Rong-Tsong Lee
DOI: 10.1016/J.JMATPROTEC.2015.04.033
关键词:
摘要: Abstract Friction stir spot welding (FSSW) has been conducted on a low carbon steel (SS400) plate pair with different thicknesses using the assembly-embedded rod (AER) and plain tools under downward force of 8 kN, rotating speed 1200 rpm dwell time 100 s. The temperature at 2 mm below center surface rapidly increases to about 900 °C AER tool, but it 510 °C tool in primary time. rate rise is 1.7 times that pain tool. depth TMAZ 6 mm; 2 When thickness upper less than 3 mm, failure load 35 kN. This higher for 4 mm thick still greater thinner strong bonding mechanism could be explained by diffusion reaction high interface deep TMAZ.
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