3D PRINTING

VWhat actually is 3D printing, where can I apply it? What are the advantages now and in the future?
Learn more about 3D printing.

 

3D printing is describing an additive layer manufacturing process. Meaning the product or object
becomes reality by applying material layer by layer. In contrast, conventional production methods
include milling, where the objects is constructed by removing material from a baseline object.
However, it needs to be noted that due to 3D printing, even the most complex objects and forms can be constructed in one piece and one process only!
This innovative process allows artists and graphical designers to make their ideas and pieces of art
tangible, without needing to be experts in the field of production. It furthermore allows companies to produce their products within such a fast pace, so errors can be detected at a very early stage and necessary improvements can be implemented very easily.
RICHTIG DRUCK is focussing on two key methods, depending on the objects and area of application:
Coloured 3D printing and laser-sintering.

3D Druck

Coloured 3D printing:

3D-DRUCKER

Preparing the data for the coloured 3D print


In order to make the 3D print a success, not only the form and measurements need to be exact, but also colour code details need to be part of the data. In order to secure this, the model is run through a series programs before being ready to be printed.

390.000 colours for the most beautiful object


The ‘project 660’ 3D printer is using two components in order to construct the object: polymer
plaster powder and liquid binder, which acts as glue to connect the right pieces of the objects.
The liquid binder is enriched with the colours cyan, yellow, magenta and black in order to colour the objects right during the printing process.

3D-DRUCKER
3D printing

3D printing layer by layer


The object is constructed by applying 0,1mm thin layers. After having laid out the plaster powder on
the printing surface, the mixed binder and colour is applied as the necessary glue. After having glued the printing surface is lowered by a fraction in order to apply the next combination of layers.

Infiltration for powerful colours


When all layers have been applied and the object is printed in its basic form, the object is removed
from the printing surface and is cleared from any remaining lose powder. The next step is to apply the infiltrate in order to make the object more robust and intensify the colours.

3D printing
3D Infiltrieren

3D printing using laser sintering

Very robust prototypes and thin wall thickness

RICHTIG DRUCK is offering functional models and prototypes made of high performance plastic, which can be constructed independent of form via laser sintering.
This process is particularly suited for 3D prototypes or even mini production series.
In case of available CAD data, RICHTIG DRUCK is able to produce your prototype is only a very short amount of time.
Due to the high performance plastic used for laser sintering, even movable functional prototypes with very thin wall thicknesses can be produced!

Realization of very complex forms

This high tech production method is not bound by the limits of conventional production methods.
3D printing via laser sintering allows for the production of high complex geometries, even including undercuts. Furthermore, in order to achieve the respective weight optimization and provide an appealing aesthetic, we are offering you a bionic optimization of the respective model.
Taking into account the correct planning, this technology allows for the production of entire components in its assembled form.

Selective powder sintering

Selective laser sintering is allowing to produce functional models from high performance plastic layer by layer. The powder is applied as a thin layer on the printing surface, where the laser is applied in order to get the powder just before the melting point. This process is used to join the powder particles where needed. Again the printing surface will be lower and the production process will be repeated until the desired object has become reality.

Fine-tuning and finish

When the printing process is completed, the model is retracted from the printing surfaces and any lose or remaining powder is removed.
The surface can now be coloured or even be painted, when the right grinding is performed beforehand.

Materials used for laser sintering

Materials used for laser sintering

When applying laser sintering, three different materials can be used. Polyamid is a proven material, as it is both stable and flexible. Polyamid reinforced by glasballs is best applied for objects where the mechanical application is stronger. Here Polyamid reinforced by aluminiumballs can also provide a robust solution with metallic optic.

When the printing process is completed, the model is retracted from the printing surfaces and any
lose or remaining powder is removed.

PA – Polyamid

The well balanced properties of white polyamidpowder are offering a wide range of applications. These properties can be compared to PA 12 injection moulding parts.

Properties:
– multifunctional material
– well balanced material properties
– high variety of surface finishing methods (coloured, grinded, painted)

Applications:
– functional components
– realization of movable objects and joints
– Compensation for classical injection moulding parts

Materialdatasheet PA (pdf)

PA-GF – Glassball-reinforced polyamid

PA-GF consist of white polyamid 12 powder, which has been reinforced with glassballs in order to achieve a higher stiffness and flexibility at the same time

Properties
– high stiffness
– high wear resistance
– high temperature resistance

Applications
– thin covering
– application with high wear
– application with high temperatures

Materialdatasheet PA-GF (pdf)

AlumideAlumide – Aluminiumparticle-reinforced polyamid

Alumide is a grey-metallic powder. It is based on polyamid 12 powder which is reinforced with
aluminium particles in order to achieve an extraordinary stiffness and a metallic look and feel.
Furthermore, it allows to be reworked mechanically.

Properties:
– can be mechanically rewored / refined
– high stiffness
– high precision

Applications
– metallic look and feel objects
– fixture constructions
– objects, with mechanical rework

Material-Datenblatt Alumide (pdf)