Can your two materials be rotary friction welded? Use the compatibility checker below to search material combinations already documented by American Friction Welding. Rotary friction welding can join many similar and dissimilar metals without melting the base materials, making combinations possible that can be difficult or impractical with conventional fusion welding.
The checker is a starting point, not a weld specification. Exact alloy, heat treatment, part geometry, interface area, required properties and production requirements all affect the final process. If your combination is not listed, that does not mean it cannot be friction welded.
Select two materials. Results are based only on combinations already published in AFW’s dissimilar-metals chart.
The material lists below preserve AFW’s published alloy-specific combinations in crawlable HTML. A listed pair indicates documented AFW friction-welding capability or experience with that combination. Materials shown without a paired alloy remain part of AFW’s published material list, but the existing chart does not identify a specific pairing.
For broader guidance on similar metals, full-strength dissimilar combinations, challenging material pairs and factors that can limit weld strength, review the Material Considerations section of AFW’s Rotary Friction Welding Design Guide.
One of the most significant benefits of friction welding is joining dissimilar metals, including combinations that can be difficult with conventional welding. Each metal has its own mechanical properties, corrosion resistance, tensile strength, expansion rate and melting point. Rotary friction welding does not require filler metal, allowing the process to focus on the characteristics of the two joining materials.
The solid-state process heats materials to a plasticized state without melting the base metals. Avoiding bulk melting can reduce problems associated with solidification, while the narrow heat-affected zone limits thermal exposure around the weld. Rotary friction welding also creates a bond across the full interface between the two parts rather than only around an outer perimeter.
During the process, surface contaminants and oxides can be displaced from the interface with the upset material. Part shortening is accounted for in the weld design, and resulting flash may remain or be removed after welding depending on the application. Some applications may also require post-weld heat treatment, cooling or testing.
Send AFW the material grades, part geometry, expected quantities and available drawings. Our team can review whether rotary friction welding fits the application.
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