High-quality Industrial Metal 3D Printing: DMLS and Binder Jetting Service |
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Metal 3D printing produces parts by fusing together metal powder layer by layer to form a metal part. It is often chosen as an alternative to CNC machining or metal casting because it can produce parts with the strength and durability of metal while also taking advantage of the design freedoms afforded by 3D printing. Metal 3D printing can produce complex designs including lattices and topology-generated structures, both which are impossible to manufacture via traditional CNC machining.
Metal 3D printing is advantageous because it can produce high-performance parts that are suited for a range of end environments. Metal 3D printed parts are isotropic, meaning they have even, multi-directional strength, and have the superior mechanical properties of metals like aluminum, stainless steel, titanium, Inconel, tool steel, and stainless steel-bronze composites.
Metal 3D printing can also be used to combine multiple assembly components into one part. This typically results in a stronger structure by reducing the points of failure introduced by threads and inserts.
With metal 3D printing, CAD file information is sent directly to a printer meaning parts are typically cheaper and faster than producing machined metal parts. Machined metal parts have overhead costs like tooling set-up and longer machining time. Most metal 3D printed parts can be turned around in less than a week.
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Xometry offers direct metal laser sintering (DMLS) and metal binder jetting as metal 3D printing options. These processes are suitable for creating metal prototypes, tooling, and production parts on demand. However, each metal 3D printing process uses different metals and fusing methods, resulting in parts with different mechanical properties, prices, and lead times.
DMLS, also known as direct metal laser melting (DMLM), uses a laser to selectively fuse sections of fine metal powder from the ground up. DMLS is advantageous because it can produce fully dense parts for fluid transfer applications. DMLS can use aluminum AlSi10Mg, stainless steel, maraging steel, tool steel, and Inconel. It is more expensive than binder jetting but has superior mechanical properties for high-precision applications. Learn more about DMLS materials, post-processing, tolerances, and applications →
Metal binder jet is a multi-step process that first selectively deposits a binding agent onto a metal powder bed, layer by layer, to hold the metal powder in a 3-dimensional shape. This resulting shape is left to cure, then put into a furnace to sinter or be infiltrated with bronze. Binder jet parts with overhanging features are supported by unused powder on all sides of the part, which usually eliminates the need for post-processing.
Binder jetting is a popular metal 3D printing choice because parts are cheap and fast, which allows for higher volume, cost-effective production. Parts are excellent for functional prototypes or end-use parts with a density of ~95% or greater. Metal binder jetting is also frequently used by artists and hobbyists because of its ability to create complex features at a fraction of the cost of DMLS or machining. Unlike DMLS, binder jet parts are prone to shrinkage so engineers should design parts with design-for-manufacturing principles in mind. This could include scaling their CAD model size by 1-2% and enlarging holes. Learn more about binder jetting materials, post-processing, tolerances, and applications →
Metal 3D printing can be used for rapid industrial tooling, where the metal 3D print can be used for parts with complex curvatures and small, thin-walled parts like conformal jigs and fixtures, stamps, dies, and cutting inserts.
For other industries like consumer products, robotics, aerospace, and defense, metal 3D printing can be used for integrated fastening features, end-effectors, and metal lattice structures. Since metal 3D printed parts have excellent durability and strength, they can be used in fully functional late-stage prototypes or end-use parts for any of the above applications.
Read about how this global distributor uses DMLS for custom shading systems, including high-strength coupling brackets and zipper assemblies.
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