The Lithography-based Metal Manufacturing (LMM) - process

LMM is an innovative, indirect, additive manufacturing process. The process is based on the principle of photopolymerisation.
The material is a combination of metal powder and photosensitive polymer binder. Through mask exposure with UV radiation, the polymer is locally structured and thus binds the metal powder.
The gradual lowering of the building platform layer by layer results in a three-dimensional green part.
The polymer binder supplies the green part with sufficient strength for subsequent demoulding and preparation for the sintering process.
In the first step of the two-stage sintering process, the polymer binder is thermally removed. In the second step, the metal powder is densely sintered into a pore-free metallic component.

The finished part has mechanical properties comparable to those of standard materials.

Characteristics of the LMM process

With a layer thickness of 40 µm, a minimum wall thicknesses of up to 0.1 mm and even micro “drill” holes with a diameter of up to 100 µm can be produced. Undercuts and cross holes are possible, too. A maximum building space of 75 x 43 x 100 mm is currently available for this purpose.
The possibility of printing different or identical components in the entire building space arranged within one print-job makes LMM a highly efficient process.

The LMM process does not require any supporting structures, which is why it is particularly suitable for the production of small and very small components with a component weight of < 30 g. This means that no time-consuming reworking is required after the component has been demoulded.

In terms of precision and surface quality, the LMM process sets new standards for the additive manufacturing of metallic components.


Advantages of LMM-Technology

Advantages of LMM-Technology

Why you should consider LMM technology!

Traditional 3D printing service providers advertise fast production and low-cost part manufacturing. With us you also gain a professional partner for developing high-precision parts with minimum post-treatment and maximum freedom of design without the need for support structures.

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In cooperation with our Austrian partners Lithoz and Incus 3D, the LMM technology was presented to an interested audience at this year's EuroPM. The EuroPM took place this year from 13th to 16th October in Maastricht. The lecture "Advances in Lithographic AM with 316L", held by Mr. Dr. Mitteramskogler from Lithoz on October 15th, showed with the reaction from the audience, which clearly recognizable advantages the LMM technology offers especially with regard to precision and resolution compared to competing technologies.

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Advantages at a glance

Lithography-based metal manufacturing offers the following advantages:

  • Highly efficient printing process
  • Very good surface quality
  • Very high accuracy and precision
  • Non-weldable materials possible
  • Especially suitable for small and smallest components (< 30g)
  • Small to medium quantities
  • Purely metallic components
  • Dense structure, no pores

Possible materials

The following materials can already be processed with the LMM process:

  • 316L
  • Titanium Grade V

If you need other materials for your applications, please contact us!

Our competencies

MetShape GmbH is specialized in manufacturing of additive metal components using the lithography-based metal manufacturing process and offers support in the following areas:

  • Consulting for LMM-compliant design
  • CAD data preparation
  • Feasibility studies
  • Small and series production
  • Consulting in the entire process chain (incl. service and maintenance contracts)