With an inner diameter of 400 mm and a finished weight of approx. 85 kg, ADMOS presents the first 3D-printed composite slide bearing at the Hannover Messe 2017. The special feature of the 100 % generatively manufactured part is the fact that, in addition to the actual production, two different additive manufacturing technologies are used simultaneously. The steel body was welded using an electric arc-based metal printing process. After machining, the part was coated with a bearing metal by laser cladding. The created additive hybrid represents an intelligent combination of two additive production technologies and enables the well-directed exploitation of the respective process advantages.
|printed weight:||90 kg|
|build-up rate:||400 cm³/h|
|print time:||30 h|
Laser Cladding (LAS)
After the mechanical processing, the base body of steel was coated by a laser cladding process. The powdered bearing metal is feeded to the component surface via a nozzle and it is melted completely by the energy of the laser beam. The sliding surface is applied layerwise and has a firmly bonding connection with the base material. The advantage of this powder-based process is the possibility to process a wide range of materials, such as the classic tin-based and copper-based bearing metals.
|cladded weight:||7 kg|
|layer thickness:||4 mm|
|print time:||2 h|
Particularly with regard to the fast availability of components, there is a number of possibilities compared to the conventional production process:
- faster availability by decoupling of delivery times
- simplification of the coating process
- higher flexibility of the manufacturing process
In addition, the reduction of the used materials in the production process can save considerable amounts of raw materials.
- near-net-shape production
- reduced “metal removal rate” at complex parts
- reduced consumption of bearing metal due to minimal oversizes