Table 2 Dimension and geometry of the tool used in FSLW and FSP.

From: Enhancing metallurgical and mechanical properties of friction stir lap welding of aluminum alloys by microstructure reconstruction

 

Tool-FSLW

Tool-FSP

Shoulder Diameter

20 mm

10 mm

Shoulder type

Concave

Concave

Probe length

3 mm

1.4 mm

Pin diameter

6 mm

3 mm

Pin pitch

1 mm

0.5 mm

Pin thread

Trapezoidal thread

Trapezoidal thread

Pin direction

Right-hand

Right-hand

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