Laser Technology
Involves the use of laser devices with specific technical features to produce chemical and physical modifications in materials, in order to provide them with new functionalities.

What types of laser technology we implement?

Laser Marking
Allows decorating, or information marking in different materials’ surfaces
Laser Cutting
Is the formation of pieces by cutting with high accuracy and flexibility of process
Laser Machining
Is the process of selective removal of material with varying geometries and sizes.
Laser cleaning
This removal process is based on thermal ablation and allows the removal of dust and pollution layers from a surface

Laser marking

Laser cutting

Laser machining

Laser cleaning

Laser Marking

Laser marking is a digital process which enables the manufacture of unitary batches without additional costs. Technological knowledge has been increased over the past years and nowadays it is possible to mark almost every material with a high quality finish for both functional and aesthetical applications.
Laser marking in metal has been known and used for decades. However aesthetical applications were not exploded due to the low quality of its finish. The annealing technique achieves a high quality finish without superficial damage thanks to its low thermal and mechanical affection. Furthermore, oxidation-resistance marks and decorations are achieved. Different metals can be marked, for instance: steel, iron, aluminium, copper, brass, tin,etc.
Laser marking in polymers is based in the chemical modification produced in their surfaces. Carbonization has been used traditionally to achieve the marking, but new techniques, for example, chemical reduction of pigments and doping substances embedded in the material, have shown an increase in the finish quality. These new techniques allow not only functional but aesthetical marking too. Different polymers can be marked as ABS, PP, SAN, PC, etc.
Ceramic and glass laser marking processes are the most complex due to the high chemical stability and high melting temperatures of these materials. If direct marking is not possible or does not cover the requirements, indirect marking through laser-cured inks can be an option. Transparent glasses follow another mechanism, which consists in modifying the crystalline structure and in consequence, its opacity. It is also possible to mark in the interior of transparent glass blocks.
Wood and cardboard laser marking are based in the carbonization of the surface until a sufficient contrast is achieved. It is widely used in wrapping and packaging industry. Wood also allows aesthetical finish. In order to increase the contrast in brown cardboard pre-printed laser-cured inks in those areas that want to be marked.

Laser Cutting

The main feature of this technique is the lack of mechanical interaction with the base material, this makes possible to avoid deformation, especially in those pieces with a small thicknesses. Besides, choosing the correct parameters for each material allows to maintain a low thermal affection and, in consequence, to achieve clean and burr-free cuts. Furthermore it is a completely digital.
Metal laser cut is widely used in industry since long time ago. The laser melts and vaporizes the metal in the incidence zone and the axes system ensures high precision cut. All sorts of metals can be cut, for instance stainless steel, also aluminium, brass, tin, etc. Thickness is a critical parameter in order to scale the laser equipment. It is usual to use gas for aiding the cutting process.
The laser process is based in the melting and vaporization of the material without any thermal affection in the nearby areas. The equipment needed to cut these materials does not need to be as potent as the one used for metals. It is possible to cut transparent as well as opaque polymers, this include ABS, PP, PMMA, SAN, PS, etc. The thickness of the polymeric material is limited and conditioned by thermal affection, since this phenomenon cannot be avoided when thick materials want to be cut.
It is a thermal micro-cut process by which material is removed from the surface in a precise and controlled way and in less than 100um wide areas. It allows the digging of micro-scale holes in the base material. The most interesting advantage is that perforations are invisible to the human naked eye, if thermal affection remains at low levels, creating new aesthetical effects. Logos and complex decorations can be performed in the material using large groups of these perforations.

Laser Machining

Laser machining is used in those applications where high precision and high quality are required when removing material from a surface. It is a fully digital technique that ensures a precise micron-scale control over the thickness that wants to be removed from the surface. Laser machining is used within a wide variety of materials, from polymers to ceramics.

Laser cleaning

Laser cleaning is a dust and pollutants culling process over surfaces. Its main advantage is the high-level of precision that can be reached without any damage of the substrate. It is highly recommended to use it with substrates that have higher thermal resistance than dust, or quite thin dust layers compared to the base material thickness.
It is the most common application and it consists of the removal of pollutants, without affecting the base substrate.
Consists of the superficial oxide layers removal, in order to increase the materials resistance to corrosion, or in other words, to passivate the material
Layer removal
This process enables the uniform and precise removal of specific layers in the working area, without damaging the base substrate.

Laser cleaning

Laser pasivation

Laser layer removal

Selection and optimization of a laser marking process

1.Define the needs and requirements of the application

In order to determine the best laser process for a specific application it is necessary to define in first place the requirements and the results under expectations. Furthermore, it is necessary to prepare the test pieces with the material used in the application.

2.Preliminary tests

Once the process is defined, several proof of concept tests are performed with the equipment available in our laboratories. Tests are accomplished taking into account all parameters defined by our customer in order to obtain the best results.

3. Scaling and selection of the final equipment

Once the type of laser and the expected results are defined, the lab process is scaled to the real needs and we begin the search for the best device in our network, considering for instance, cost, time cycle, facilities size, etc.

4. Final acceptance testing of the equipment

Real components are manufactured with the final equipment and in small amounts as pre-series, in the supplier facilities. These samples are tested according to the requirements of the customer in order to guarantee the optimal functioning of the laser and ensuring the cover of all the established needs.



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