Laser Technology

Specialists in industrial laser applications

What types of laser technology do we implement?

It is the use of laser equipment with very specific characteristics in order to create physical and chemical modifications that can provide new functionalities to the materials.

Laser marking

It is the realization of decorations, codes or information on the surface of materials.

Laser cut

It is the conformation of pieces by cutting with great precision and process flexibility.

Laser machining

It is the process of selective removal of material with variable geometries and sizes.

Laser cleaning

Selective removal by thermal ablation of layers of dirt or contaminants from a surface.

What is the laser marking used for?

Metals

Metal laser marking has been known and used for decades. However, its use until a few years ago was not aesthetic due to its poor quality. Thanks to the annealing technique, a good finish is achieved without damaging the metal surface, due to the low thermal and mechanical effects of the process. In addition, decorations or marks with great oxidation resistance are obtained. Metals such as steel, iron, aluminum, copper, brass, tinplate, etc. can be marked.

Polymers

Polymer laser marking is based on the chemical modification of the surface. Carbonization has traditionally been used to achieve marking, but new techniques, such as the chemical reduction of certain pigments and dopants within the material, have shown an increase in quality. This new technique allows marks with aesthetic purposes, not just functional. Polymers such as ABS, PP, SAN, PC, etc. can be marked.

Ceramics and glass

The laser marking in ceramics and glass is the most complex, due to the great chemical stability and high melting temperatures they present. If direct marking is not possible or does not meet the requirements, it is possible to mark indirectly through the use of laser-cured inks. In the case of transparent glasses, the mechanism used consists in modifying the crystalline structure , and modifying its opacity. It is also possible to make inner markings.

Wood and cardboard

The laser marking on wood and cardboard is based on the carbonization of the surface to achieve the desired contrast. It is widely used in the packaging sector and in the packaging of products. In the case of wood, aesthetic finishes can also be achieved. To increase the contrast in cardboard you can use pre-printed inks by the cardboard manufacturer in the areas where you want to mark. These inks cure when marked by laser.

What are the uses of laser cutting ?

Metal

Laser cutting of metallic materials has been widely used in the industry for many years. The laser melts and vaporizes the metal in the area of ​​incidence, and by means of an advance through axes it makes the cuts with the required precision. All types of metals can be cut, such as steel, aluminum, brass, tinplate, etc. Thickness is a critical parameter for sizing the equipment and usually limits the cycle time. In many cases, the contribution of a gas is usually used to facilitate cutting.

Polymers

The laser cutting of polymeric materials is based on the fusion and evaporation of the material avoiding thermally affecting the areas near the cut. The equipments used have less power than those used in metal cutting. It is possible to cut both transparent and opaque polymers. We have experience with many polymers such as ABS, PP, PMMA, SAN, PS, etc. The thickness of the polymeric material is limited since in large thicknesses the thermal effect of the cutting area cannot be avoided.

Microperforation

It is a thermal micro-cutting process in which the removal of material is carried out in a controlled manner in spaces below 100 um, allowing the creation of holes within the micrometric size material. The great advantage of these perforations is that if the thermal condition is low they can be invisible and only become visible with the passage of light, creating a new aesthetic effect. If a large number of holes are drilled on a surface, complex logos and decorations can be made.

Laser Machining

The laser machining is used in applications where high precision and quality are required. It is a digital technique that allows you to control the thickness of material removed in the micron range. Laser machining is used in a wide variety of materials, from metals to polymers and ceramics.

What is laser cleaning for?

Dirt

It is the most common application and consists of removing contaminants present from a surface, without affecting the substrate.

Passivation

The surface oxide of a metal is removed to improve corrosion resistance, passivating the material.

Pickling

In this process, complete layers of material are removed in the areas of interest evenly, without damaging the substrate.

Method of selection and optimization of a laser process

Define requirements and application needs

To determine the laser process that best fits the application, it is necessary to define the requirements that are required as well as the expected results. Specimens of the material used in the application are also prepared.

Preliminary tests

Once the process is defined, concept tests are carried out with the equipment that we have in our laboratories. Trials are drawn up sweeping a large number of parameters that are analyzed together with the client to select the best results.

Scaling and equipment selection

Selecting the type of equipment and the result sought, the process is scaled by searching our network of suppliers for the equipment that best fits the needs of our client, cost, cycle time, installation size, etc.

Final tests and acceptance of the equipment

Small pre-series are made with the equipment selected in the supplier, manufacturing real parts. These are subjected to all the tests or tests required by the client to ensure the proper functioning of the equipment and that it is adapted to the established needs.
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