Abstract Scope |
Direct metal deposition (DMD) is a Laser Powder additive-manufacturing (AM) technique that can be used for repair of the industrial metallic parts. The other advantages of the technology are hardfacing, and repair. DMD technology has been shown to reduce the fabrication cost for reconfiguring, hardfacing and repair of forging dies, and other parts that are very expensive to replace. DMD can be an economically viable solution that is able to achieve properties that are comparable or better than wrought material. Parts built with AM technology tend to be expensive and when a repair of the AM part in service is needed, depending on the location, it can be engineering intense, and costly to be repaired. Powder Bed Fusion technology is one of the leading technologies for Metal Additive Manufacturing, but it has limitations for repair due to having only 3axis of freedom for building. DMD is one of the only technologies that not only can repair parts made traditionally, but also, parts that are additively made with DMD or any other AM processes because of the adaptability of the technology based on the application as well as the multi-axis capability. As the parts made by AM will gain permission to be used in service day by day, the repair of the parts will be needed and repairing an additively manufactured part will make more sense than replacing it. As a case study for this presentation, a powder bed 3d printed part that was repaired using DMD as well as a repair of a part that was built by DMD technology for the energy sector will be demonstrated. |