Dennis Harwig

Dennis Harwig's research focuses on welding and metal additive manufacturing, particularly wire-arc directed energy deposition (a 3D-printing method that builds metal parts by depositing molten metal layer by layer using an electric arc). His work examines how different metals and alloys (steel, aluminum, nickel aluminum bronze, tungsten heavy alloys) behave during welding and deposition processes, including issues like cracking, microstructure changes, and material degradation from heat exposure. Applications discussed in his work include marine propellers, vehicle structures, and high-strength steel components.

Publication output has been modest but increased somewhat in recent years, rising from occasional single papers before 2021 to a steadier pace of 1-3 papers per year through 2023-2026.

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