3D PRINTING TECHNOLOGIES

BY USING 3D PRINTERS WE CREATE WHATEVER YOU WANT

We often face a problem when we need a specific part, but we cannot solve it by buying a new one if it is no longer available. This is where 3D printing technology comes into play, with the help of which we can create a duplicate piece. We simply sprint the new one.

3D printing is the process of making three-dimensional parts of virtually any shape from a digital model. It is achieved by using an additive process in which successive layers of material are deposited in various forms. It differs from traditional production techniques in that classical methods mostly use material removal by cutting, turning or drilling, in which case it is the reverse process. In 3D printing, material is added, which means that there is significantly less waste material, and in addition, the parts are made faster.

Use of 3D printing
Use of 3D printing

A 3D printer can use many different materials for printing (rubber, plastic, powder, resin, polyurethane materials, metals, etc.), and the choice depends on the capacity and type of the 3D printer. In general, layered materials are applied in different ways.

Materials for 3D printing
Materials for 3D printing

– THE MOST COMMONLY USED MATERIALS FOR 3D PRINTING

THERE ARE SEVERAL 3D PRINTING TECHNOLOGIES, THE MOST COMMONLY USED ARE:

FUSION FILAMENT FABRICATION

The most widespread method for a wide range of users. The 3D printer pulls the filament into the head, where it melts it and applies it through a nozzle to the work surface, where it cools and hardens. By moving the head during printing and certain coordinates, the final product is created.

FFF 3D printing technology
FFF 3D printing technology

– PRINTERS WITH FFF TECHNOLOGY

PHOTOPOLYMERIZATION

The most common are SLA (Stereolithography) and DLP (Digital Light Processing). SLA represents the first 3D printing technology in history. It was invented in 1986 by Chuck Hull. With the help of mirrors on the X and Y axes, the light source penetrates through a container with resin, which selectively hardens in layers.

SLA is a slightly more accurate method, as it uses a laser to work more pointwise, making it more suitable for printing smaller pieces, while DLP uses a projector that has a wider beam of light. In this way, the piece is made faster, but not with such precision, so this method is used to make larger pieces.

SLA 3D printing technology
DLP 3D printing technology

– PRINTERS WITH PHOTOPOLYMERIZATION TECHNOLOGY

EP-A800 Resin 3D printer

EP-A800 Resin 3D printer

EP-A350 Resin 3D printer

EP-A350 Resin 3D printer

Photocentric3D Liquid Crystal Precision V1.5

Photocentric3D Liquid Crystal Precision V1.5

LASER TECHNOLOGY

This type of technology uses a powder that is applied by the laser in individual layers while printing. When the powder is exposed to the laser beam, the temperature at this point rises above the crystallization temperature, which joins the layers during printing.

This segment includes the SLS (Selective Laser Sintering) method, which is intended for printing plastic products, and the SLM (Selective Laser Melting) method, which is used for printing metal pieces.

SLS 3D printing technology
SLM 3D printing technology

– PRINTERS WITH SLS IN SLM TECHNOLOGY

EP-M250 Metal 3D printer

EP-M250 Metal 3D printer

EP-C7250 Wax / Sand 3D printer

EP-C7250 Wax / Sand 3D printer

EP-P3850 Polimerni 3D printer

EP-P3850 Polimerni 3D printer

MATERIAL JETTING

It works in a similar way to a standard inkjet printer, except that instead of one layer, several layers are applied at once, which are continuously cured by UV light. The printing process is thus faster with the same product quality.

DIRECT ENERGY DEPOSITION

It is a laser surfacing of material for finished metal products. This form of printing is often used to repair existing pieces and improve mechanical and functional properties. In any case, the advantage is that the sprint pieces can be processed with classical methods, which greatly reduces costs and produces much less waste material.

DED 3D printing technology
DED 3D printing technology

LAMINATED OBJECT MANUFACTURING

Abbreviation means loading laminated layers. The layers are stretched over the previous layer, where they are glued together with the help of double-sided adhesive foil and a heating roller that presses on them. The final and smoother shape is obtained by laser treatment, which removes excess material that has been applied during printing. The advantage of this printing technology is the speed of production, and the disadvantage is that it is more difficult to produce very thin walls of the model.

LOM 3D printing technology
LOM 3D printing technology

WHICH ONE TO CHOOSE?

Everyone has their own needs, so the choice of 3D printing technology must be tailored to them. Of course, each has certain advantages and limitations, but there is always an optimal solution. 3D printing technology is developing very fast and enables users more and more affordable solutions in an efficient way.