Method of manufacturing a bonded joint of the friction stir welding method and the structural steel of structural steel

摘要

Purposes of the invention is, when flowing backwards failure with advantageous way address, also improves connection construction since insufficient heating material to be processed carries out friction stir weld structural steel to provide enough intensity. In the present invention, the structural steel of agitating friction weldering is executed during the pre-heat treatment technique, the pre-heat treatment technique is a kind of process, its light plate (3), which is material to be treated heating, that movement direction of engagement in front of the rotation tool (1) provided by heating (5). The present invention is constructed such that surface temperature, surface area, position, etc. heating region, be strictly control in the preheating treatment procedure.