Real-time tool breakage detection during the friction stir welding process

摘要

The present invention provides a novel method and system for tool breakage detection during the friction stir welding procedure on an automated friction stir welding machine. The object of this invention is the integration of an accelerometer sensor which detects tool breakage events in real time and triggers a preprogrammed reaction of CNC controller. In this way, a complete destruction of welding tool is prevented. Another object of the present invention is to provide an automatic reaction of CNC controller that is triggered by an error signal and consequently prevents N.O.K parts with welding faults from entering further production steps.