Abstract: A method for joining materials, comprising placing a first metal item within a spindle; rotating the spindle to a predetermined speed; contacting the first metal item with a second metal item to create friction between the first metal item and second metal item, wherein the second metal item has a known austenization temperature that is not crossed by the created friction; applying a predetermined amount of force through the spindle, wherein application of the force stops the rotation of the spindle and joins the first metal item with the second metal item; and retracting the spindle from the first metal item.