Device and method for avoiding an interruption of the welding process in friction stir welding, in particular a fracture of the friction pin.

摘要

Device and method for avoiding an interruption of the welding process in friction stir welding, in particular a breakage of the friction pin, having the following features: a) a system of strip - shaped sensors (8) for determining force pressure and displacement of a rotating pin (19) leading tool bell (7) is supported by a taper waist in the lower area of a tool receiving cone (28) which serves to detect the axial force, torque and bending moment on a welding pin (19). b) Sensors for detecting the bending and the temperature of the welding pin (19) provide timely information about the state of the welding pin (19) from damage.