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MX3D has published a selection guide for wire arc additive manufacturing (WAAM) parts in two nickel superalloys. Inconel 625 suits corrosive service and easy processing, while Inconel 718 suits high loads at elevated temperature but needs a long heat treatment route. The choice sets operating limits, cost and lead time.
MX3D prints custom ship propellers in nickel aluminum bronze with wire arc additive manufacturing, skipping the casting pattern and mold. A five-blade, 200 kg propeller took 80 hours, and the company says it is the first WAAM facility certified to DNV AMC3. The route targets one-offs, urgent replacements and repairs.