Friction Stir Welding for High-Temperature

Because metals such as steel, stainless steel, and nickel-based alloys have high melting points, they have posed many challenges for friction stir welding. Tools made from refractory alloys containing tungsten, hafnium, rhenium, molybdenum, niobium, and zirconium have high-temperature properties, but during friction stir welding, these elements either alloy with the material being friction stir welded or abrade and deposit tool material in the weld region after welding only a few centimeters.

The MegaStir proprietary solid-state joining process combines cutting and friction to join high-temperature alloys quickly and consistently, resulting in a superior weld. Using its own patented polycrystalline cubic boron nitride (PCBN) formulas, MegaStir tools offer uniquely high friction and durable tool wear.

M Series

Longest-wearing polycrystalline cubic boron nitride tip for steel friction stir welding.

Q Series

Premium tool that welds the toughest and thickest metals at higher temperatures.

D Series

Deburring tool that saves rig time by providing burnishing, milling, and sanding during the welding process.


Tools developed by EWI provide high-quality welds primarily in titanium alloys as well as other ferrous and nonferrous alloys.

Request More Information