and correct parameter setting a sound and defect-free weld can be produced in order to joint the metal 3D printing materials. Besides, the FSW tools must be harder than the materials that need to weld. The most important parameters in FSW are the rotation of probe, traverse speed, spindle tilt angle and target depth. The weld joint efficiency of FSW on the 3D printing metal can reach up to 83.3% compared to its base materials strength. See also Dissimilar friction stir welding Friction hydro pillar processing Friction stir processing Friction welding :Category:Friction stir welding experts References External links Friction stir welding at TWI Friction-stir welding research at University of Cambridge Friction-stir welding of aluminum alloy to steel; academic article from the 2004 Welding Journal Friction stir welding research at Vanderbilt University Welding Automation Laboratory Back of the envelope calculations in friction stir welding Theory of materials processing/welding research group at Penn State University Friction Stir Welding Machines: Applications & Key Features Friction stir welding research at IIT Gandhinagar, India de:Reibschweißen#Rührreibschweißen