A mechanistic study of the friction stir welding process.

摘要

Vanderbilt researchers have sought to quantify the relationship between axial force (Fz), rotational speed, travel speed, and other process parameters for friction stir welding (FSW). Experimental data for Al 6061-T6 welded at high rotational (1500-6000 rpm) and travel speeds ranging from 30-130 ipm are presented. The results are discussed and compared to a three-dimensional fluid flow model implemented using the computational fluid mechanics package FLUENT. The forces and torques associated with friction stir welding are discussed relative to enhancing the feasibility for robotic implementation of FSW.