LINEAR FRICTION WELDING – PROCESS CONTROL AND MACHINE TECHNOLOGY

Friction Stir Welding Process Optimization: Experimental Methods

Introduction The Friction Stir Welding (FSW) process is an innovative technique to join metals in the plasticity field, thus not reaching the melting temperature and consequently the liquid state as it happen in traditional welding processes. This feature of the FSW proved an enhancement of the fatigue behaviour and strength of the joints, leading some companies to adopt the process for the man...

Monitoring and Control in Friction Stir Welding

Friction Stir Welding (FSW) is a recently-developed technique where metals are joined together through mechanical stirring. FSW, often performed by robotic welders, is being used in an increasing number of industries such as aerospace, maritime and transportation. FSW has proven to be very effective and has replaced fusion welding and riveting in a number of manufacturing processes. In order to...

The Development of In-process Monitoring and Control Techniques for Aerospace Applications of Friction Stir Welding

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Numerical modeling of friction stir welding process: a literature review

This survey presents a literature review on friction stir welding (FSW) modeling with a special focus on the heat generation due to the contact conditions between the FSW tool and the workpiece. The physical process is described and the main process parameters that are relevant to its modeling are highlighted. The contact conditions (sliding/sticking) are presented as well as an analytical mode...

Combined Temperature and Force Control for Robotic Friction Stir Welding