Additive Manufacturing
Safe Filtration During Powder Bed Fusion
In the field of additive manufacturing of metallic materials, more and more attention is being paid to safety aspects. The metallic raw materials are in most cases highly reactive and place maximum demands on sustainable safe handling. The reactive particle loads must therefore not enter the atmosphere of the production room. However, condensate and dust should not remain in the build space either as the quality of a build job in almost all additive manufacturing processes is directly related to the degree of embedded contamination and foreign particles.
The optimum solution is offered by the realization of pure surface filtration with the Herding® Sinter-Plate Filters in combination with safe, consistent passivation as well as integration into the inert gas circuit of the systems. Herding® filter media show extremely durability and, depending on the process, long service life times of more than 10 years. Thus, the use of the Herding® Sinter-Plate Filters makes a valuable contribution to occupational safety, environmental protection and sustainability.
Use Throughout The Process Chain
Reliable and efficient filtration is necessary for sustainably safe additive manufacturing processes. Herding® filter technology provides safe handling and constant production in almost all areas of powder bed fusion. This already starts in the production of the metal powder and continues in the component production, in which its safety properties set standards. A sophisticated modular principle allows a variety of Herding system designs which give the possibility to adapt individually to building space size as well as the number and power of the lasers.
The systems with the Herding® rigid-body filter medium are also used in the field of integrated automated powder transport systems for the supply and disposal of metal powders as well as in mechanical post processing where support structures are removed and surfaces get optimized. Herding
Herding Sinter-plate Filter System
The production following original Herding standard ensures a high-quality standard and enormous flexibility for our customers worldwide. We offer customized and specially developed filter system designs from prototype to series production in order to increase productivity and safety of our customers.
Gas-tight filter systems with the Herding® Sinter-Plate Filter, which are monitored by redundant proximity sensors, actuators as well as an oxygen sensor and therefore operate safely Herding
Constant differential pressure due to pure surface filtration ensures optimum laminar flow in the build spaces of additive manufacturing processes
Integrated vacuum generator
Independent control system
Customized enclosure if required
