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What is Metal 3D Printing?
DMLS is a 3D printing process, which uses a computer-controlled, high-power laser beam to melt and fuse layers of metallic powder together.
Direct metal laser sintering (DMLS) is an industrial 3D printing process that builds fully functional - rapid metal prototypes and production parts in 7 days or less. A range of metals produces final parts that can be used for end-use applications.
How Does Metal 3D Printing Work?
DMLS follows the basic process sequence for most 3D printing technologies: model, slice, and print layer-by-layer. Once a 3D model is created and sliced with the appropriate software, the code needed for the printer to make the part is supplied to the printer, and the physical process can begin.
To start, the DMLS printer hopper is filled with the desired metal powder. Printer heaters bring the powder to a temperature near the sintering range of the alloy. The printer uses an inert gas, which protects the heated powder and part as it is built.
The build begins with dispensing a thin layer of metal powder onto the build platform. The laser then begins its path for this layer, selectively sintering the powder into a solid. The sequence of dispensing a layer and sintering continues until part completion.
After the part is left to cool, the surrounding loose metal powder is removed from the printer. The last steps include support removal as well as any post-processing needed.
DMLS parts can be treated like metal parts produced by conventional metal working for further processing. This may include machining, heat treatment, or surface finishing.
These process steps are shared with SLM, just with the laser’s power turned up to “melt”.
Attach this document to an event, task, or address
You can attach a link to this document to an event in your Calendar, a task in your To Do list or an Address. Check the boxes below for the data you want to
bring into the event’s or task’s description, and then click “Select text to copy” to have the next event or task you create or edit have the document text and link.
