Why do you need direct metal laser sintering?

Why Choose DMLS For Your 3D Printing Project? DMLS materials are generally accepted to be equal or better than those of wrought materials. DMLS is also ideal when the geometry or structure of the part is not possible in any other process (for weight saving designs using honeycomb or latice structures for example).

What are the disadvantages of laser sintering?

Selective Laser Sintering Disadvantages / Limitations

• Very expensive. The machines can often cost $250,000+, and the materials cost $50-60/kg.
• Cool-down time of 50\% of print time can mean up to 12 hours of waiting. This leads to longer production time.
• Parts have a grainy surface without any post-processing.

Is laser sintering expensive?

Given its low cost per part and durable materials, SLS printing is an economical way to produce complex, custom parts, or a series of small components for end products. In many cases, laser sintering is a cost-effective alternative to injection molding for limited-run or bridge manufacturing.

Is DMLS a SLS?

However, the biggest difference between the two processes is the type of materials that can be used to “print” the required parts. SLS can be used with a variety of metals and non-metallic materials, whereas DMLS is designed to work solely with metals.

How long does SLS printing take?

Selective laser sintering (SLS) is an industrial 3D printing process that produces accurate prototypes and functional production parts in as fast as 1 day.

How Fast Is laser sintering?

Selective laser sintering (SLS) is an industrial 3D printing process that produces accurate – rapid prototypes and functional production parts in as fast as 1 day.

What is direct laser sintering (DLMS)?

Direct laser metal sintering (DLMS), also referred to as direct laser metal forming (DLMF) and selective laser melting (SLM), is a method wherein a highly intensive laser beam is directed onto a metal powder bed and fused metal particles according to a computer-aided design file (Shibli et al., 2013).

What materials are used in laser sintering?

Direct Metal Laser Sintering / SLM Materials Though 3D printer manufacturers are continuously innovating to create new metal powders, there are a number of main metal powders used in DMLS 3D printing. These include aluminum and titanium, though others such as Cobalt-chrome, Stainless steel and Inconel are also commonly used.

What is direct metal laser sintering / Selective laser melting?

Direct Metal Laser Sintering / Selective Laser Melting Both DMLS and EBM fall under the metal Powder Bed Fusion umbrella, but have one key difference. Selective Laser Sintering also falls under Powder Bed Fusion, but only involves plastics, whereas DMLS and EBM only 3D print metals. Selective Laser Melting is also explained below.

How does metal 3D printer performance depend on laser spot size?

Metal 3D printer performance depends on three main factors: Laser spot size: how large the laser is and therefore how precise it is. Geometry of metal powder: finer powders vs less fine powders. Layer height: smaller layers means longer print times but better quality surface finishes and part quality.

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