Visit us at the leading trade fair for additive manufacturing "formnext" in Frankfurt. We are co-exhibitor of our Austrian partner INCUS 3D. You will find us in hall 11.1 booth D32.
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.
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.
Processes that were previously used in the plastics sector are now also bringing steel & Co. into shape.
Dr. Andreas Baum, lecturer and scientific assistant in the field of mechanical engineering at the University of Applied Sciences Pforzheim, has received funding from the Ministry of Science, Research and the Arts (MWK) Baden-Württemberg since Monday, 1st April 2019. His newly founded start-up, "MetShape GmbH", is supported for one year by the "Young Innovators" programme.