Direct Metal Deposition (DMD®) can manufacture, remanufacture, reconfigure, repair and restore parts directly from art (computer aided design – CAD). It also can extend the lives of components by applying wear and/or corrosion resistant coatings. Unlike conventional plating or coating, DMD is capable of processing medium to large size parts with multiple materials, which provides a significant competitive advantage over other additive metal manufacturing (AMM) technologies such as DMLS and EBM.
DMD is not limited to being a few microns thick, but can be from microns to mm thick, depending on project requirements. It’s a user-defined alloy layer with a metallurgical bond to steel or other metallic substrates. DMD routinely deposits a variety of super-alloys as a hardfacing material to forging, stamping, trimming dies, cutting products and more.
This innovative, patented approach to tool construction increases the service life of perishable tooling by as much as eight times that of conventionally fabricated products. Similar applications for corrosion-resistant coatings are possible in the chemical or defense industries. Closed Loop control means a low heat affected zone with minimal distortion. This plays a major role in maintaining the dimensional stability and structural integrity of remanufactured parts, while providing a strong metallurgical bond.
The advantages of DMD® are that it creates near net shape and controls heat input, which reduces post processing of the product. DMD® also allows us to monitor and control the height and temperature of the melt pool. A pyrometer monitors (in real time) melt pool temperature which allows for consistency and is critical when depositing dissimilar or bimetallic metals. Additionally, it controls the dilution of substrates, even though the deposited material and substrate material may have very different melting temperatures.