An important phase of additive manufacturing production is that dedicated to post-processing activities. For metal productions, our internal finishing department carries out various activities useful to guarantee the expected result: from depowdering to EDM, from painting to welding.
Following the extraction of the piece from the machine, the residual powder is removed. This is a crucial operation, especially when there are internal cavities or cracks, or when the component has complex geometries. [ Learn more ]
DETACHMENT OF THE PLATE
After depowdering, the piece is detached from the construction plate. This phase is made easier if, during the definition of the production job, the supports are correctly designed. A correct design allows not only to obtain a simple and minimally invasive detachment, but also to guarantee adequate heat dissipation during production. [ Learn more ]
To cut the piece we use an EDM system with a water jet that does not include submerging in a tank, but which only works on the affected area. The process is thus faster than normal erosion and avoids the loss of conductivity. [ Learn more ]
he main operation that characterises this phase is the removal of construction supports through manual or sometimes even CNC operations. The component is then roughed using abrasives with different grits and cutters up to the polishing with felt.
According to the project specifications, tumbling can also be used at this stage.
The result is a finish equal to that of the micro-melting process.
[ Learn more ]
Sandblasting blasting allows to make the surface of the piece uniform and uses different types of abrasives such as steel, corundum, zirconia, ceramics. [ Learn more ]
POLISHING, SATIN FINISHING AND BRUSHING
Components made in additive manufacturing are generally complex in shape and requires specific preparation:only expert and specially trained employees can take care of this activity. LThe satin finish and brushing give aesthetic homogeneity, the first giving the surface a matt appearance, the second creating a brushed finish. [ Learn more ]
The painting allows the customer to define the colour from RAL or Pantone and can be made with powders, by spray or by cataphoresis. [ Learn more ]
SCREEN PRINTING AND PAD PRINTING
Screen printing and pad printing allow the application of a layer of paint selectively using a screen printing frame. Screen printing is used on flat surfaces, whereas pad printing is for curved surfaces. [ Learn more ]
Laser marking is imprinted on the components and is particularly useful for tracing the pieces, it can also be carried out on curved surfaces. [ Learn more ]
Additive integration allows you to take full advantage of both the benefits of additive design and the precision of CNC machines, integrating additive and subtractive manufacturing. Additive integration also means industrialising the product in view of a combined production. [ Learn more ]
THREADING AND BORING
Also in additive components it is possible to place inserts, bushings, pins according to the characteristics of the project or to make threads or bores of nominal size directly on the component. [ Learn more ]
Impregnation is a protective treatment that allows to close the micropores of the material ensuring a greater seal of the component. [ Learn more ]
WELDING AND GLUING
Welding allows the union of two joints by melting them, or by means of filler metal; TIG welding is mainly used.
The gluing allows the joining between several parts not through the fusion of the edges, but through structural adhesives and requires an ad hoc design. Different types of glue are used, specific for each application. [ Learn more ]