SLM – Selective Laser Melting
SLM is a 3D printing process that enables the production of complex metal geometries. It is particularly well-suited for functional components that require high levels of strength, precision, and specific material properties.
understand the process
How does the SLM process work?
In selective laser melting, fine metal powder is deposited layer by layer onto a build platform. A high-power laser melts the metal powder at the points where the component is to be formed. The material is completely melted and bonds together to form a dense, solid structure.
After each layer, more powder is applied and fused until the part is fully built up. The process takes place in an inert gas atmosphere to ensure consistent material quality.
Features & Benefits
Features & Benefits of SLM
SLM enables the additive manufacturing of full-scale metal components and is primarily used for demanding industrial applications .
Overview of the advantages of the SLM process:
- Manufacturing of dense, fully load-bearing metal components
- very high strength and dimensional stability
- Implementation of complex and functionally integrated geometries
- Material-efficient manufacturing without traditional tools
- Suitable for individual parts and small production runs
Typical applications
Typical applications for SLM
Selective laser melting is used in applications where metal components must be able to withstand high mechanical stress.
Typical SLM applications include:
- Functional and structural metal components
- Components for mechanical and plant engineering
- Tools and Fixtures
- Components with complex geometries or integrated functions
Materials in the SLM
Did you know?
Selective laser melting was originally developed for applications where weight and strength are critical—including the aerospace industry.
A price comparison using a gear (3.5 cm diameter) as an example
| Material | Price |
|---|---|
Aluminum AlSi10Mg | approx. €155.00 |
Tool steel 1.2709 | approx. €156.00 |
Stainless steel 1.4542 | approx. €152.00 |
Nickel-based alloy Inconel 718 | approx. €276.00 |
Titanium TiAl6V4 | approx. €1,993.00 |
(All prices are subject to VAT and shipping costs)
good to know
SLM Compared to Other 3D Printing Methods
Compared to plastic 3D printing processes such as SLS, MJF, or FDM, SLM enables the production of metal components with significantly higher strength and temperature resistance. For applications without metal requirements, plastic processes are generally more cost-effective.
Top Tips for Design
Is SLM the right 3D printing process for your project?
Whether selective laser melting is suitable for your application depends on the material requirements, the load, and the quantity.
We'd be happy to help.
Markus Prokscha
SLM expert
I look forward to hearing from you!
+49 (0) 341 231 837 32 metall@rapidobject.com