Nikon Corporation Advanced Manufacturing Business Unit
Nikon Corporation Next Generation Project Division

Repair of existing part

Nikon’s metal 3D printer performs additive manufacturing using metal to repair damaged or worn parts. This section shows an actual example of additive manufacturing repair.
Repair of existing part

Example of turbine blade repair

Actual example of turbine blade repair using Nikon’s metal 3D printer
In conventional turbine blade repair, the section to be repaired is welded manually to build-up the metal and then shape finishing is performed by scraping processing. In comparison, Nikon’s metal 3D printer automatically performs additive manufacturing on the part to be repaired while also realizing high precision modeling as shown in the photo, eliminating post-processing work such as scraping, which was previously required.
Turbine blade repairTurbine blade repair
Tip of a turbine blade on which additive manufacturing using metal was performed
After many years of use, the tip of a turbine blade is worn and eroded. To recover functionality, additive manufacturing is performed on the worn tip using a 3D printer and the original blade shape is restored. The photo on the right shows the tip of the blade restored to its original shape by additive manufacturing on the worn tip.

Automatic path generation by 3D measurement

In turbine blade repair, the shape of the damaged part is measured by a 3D measuring device. The repair can then be performed by extracting the difference from the ideal shape to create a shape model for the part to be repaired and automatically generating a processing path in the machine coordinate system. (Depends on the shape to be repaired)
Automatic path generation by 3D measurementAutomatic path generation by 3D measurement
Conceptual image of difference model extraction using 3D scanning

Other cases

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