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Metal 3D Printing DMLS / SLM / BJ

DMLS (Direct Metal Laser Sintering) is a 3D printing technology that uses a laser to sinter metal powders into solid layers, creating metal parts with high precision and complex shapes.

How does it work?

Metal 3D printing using DMLS (Direct Metal Laser Sintering), SLM (Selective Laser Melting), and BJ (Binder Jetting) allows for the production of complex metal parts and components with high strength and precision. These technologies are ideal for manufacturing spare parts and technical components.

DMLS is an additive manufacturing technology that uses a laser to sinter metal powder layer by layer, creating a 3D object. SLM is similar to DMLS but uses a higher-powered laser that completely melts the metal powder, resulting in stronger parts. Binder Jetting uses a binding agent applied to the metal powder to join particles in desired areas. Unlike DMLS and SLM, BJ applies heat treatment only after the entire part is created.

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Advantages

check High strength and mechanical properties

check Ability to manufacture parts with complex shapes and internal structures

check Ability to print using various metals

check Creation of lightweight parts with internal structures

Disadvantages

close Grainy surface without post-processing

close More expensive compared to other 3D printing methods

Applications

check Prototypes

check Cost-effective prints

check Wide range of available materials

check Short lead times

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Materials for DMLS / SLM / BJ printing

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AlSi10Mg

Aluminum alloy (AlSi10Mg) is a strong and lightweight material with good thermal properties. It is printed by sintering aluminum powder using a special laser. 3D printed parts from AlSi10Mg are of the same quality as machined models, but it is possible to create much more complicated geometries or various internal channels in parts. 3D printed aluminum does not look like traditional shiny machined aluminum; it has a matte gray surface with a slightly rough appearance. The fine glitter is due to the presence of silicon in the alloy.

Usage / Features

Thanks to the combination of lightness and high strength, this alloy is ideal for applications where strong but lightweight components are needed. The aluminum alloy has excellent thermal properties, making it suitable for applications where heat dissipation is required.

Advantages

Advantage icon Low weight

Advantage icon High strength

Advantage icon Good thermal properties

Disadvantages

Disadvantage icon Rougher surface

Disadvantage icon Limited flexibility

Technical Specifications

Tensile strength

332 - 480 MPa

Tensile modulus

70000 - 76000 MPa

Elongation at break

7 - 11%

Download material datasheet for AlSi10Mg Download icon

Examples