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Additive Manufacturing is transforming the way manufacturing is done throughout the world.
Due to its innovative and disruptive nature, Additive Manufacturing is being called The Next Industrial Revolution.

GE Aviation, a General Electric Company
www.geaviation.com

Metal Additive Manufacturing or 3D printing of metals is one of the most significant innovations in the world of industrial manufacturing of this century.
The most advanced Metal Additive Manufacturing technology is the laser sintering of metal powders, better known as Selective Laser Melting (SLM).
Selective Laser Melting is a laser melting process that allows the production of objects from three-dimensional drawings. Fine metal powders are deposited and fused, layer after layer, by high performance lasers.
The mechanical and geometrical characteristics of the resulting parts by Selective Laser Melting are comparable to the best castings made with injection molds, while the metallurgical characteristics are even higher since the cooling is more controlled and uniform than conventional casting.
The metal powders used are suitable to support heat treatments, machining processes such as milling, drilling, turning, surface finishing and protective treatments.
The laser melted parts have an excellent density, higher than 99%: whenever required, to reach 100%, it is possible to perform Hot Isostatic Pressing (HIP).

Main strengths and benefits of SLM versus conventional manufacturing technologies

  • Maximum freedom while designing.
    SLM allows, without any additional costs, the production of parts with extremely complex geometries and components with internal ducts even curved and with variable sections, enabling the designer to avoid the typical constraints of casting, forging and machining processes.
  • Manufacturing of lightweight objects by just using the material strictly necessary to support the weight, strains and stresses which they undergo in loading conditions. While designing the 3D digital model, thanks to specific software, it is possible to remove excess material without sacrificing the structural integrity of the part, without altering its quality, resistance and mechanical properties, resulting in an extremely optimized part that is lightweight and subject to uniform loading, allowing significant economic benefits and performance improvements.
  • No production waste, applying material just where necessary. The SLM process melts the strictly necessary amount of metal powder, resulting in extremely efficient use of raw material and energy consumption. Compared to traditional machining process, SLM does not generate scraps or metal chips. Compared to casting and forging, SLM avoids typical pollutants such as dust, fumes and slag.
  • Reduced cost and time from design to prototype. In a few hours we can switch from 3D drawing to the finished component, saving time and money. No complexity of multi-phase production cycles, no spread phases among several suppliers, no queues or waiting times from one phase to the next, no critical issues about logistics and production planning.
  • No cost for tooling, molds or other production equipment.
  • Competitiveness even for small production batches. With no need for tooling or molds, the manufacturing cost is not dependent on the batch to be produced, even for batches of a few units, as well as larger quantities.
  • Highest level of customization, enabling taylor made components for free.
  • Thanks to metal powders with known metallographic structure, the SLM parts are suitable for high performance, consistent and replicable heat treatments.

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Focus on innovation, technical expertise and the highest regard for Customers' requirements are the key success factors of ADDITIVA as a reliable business partner.