IREPA LASER was a forerunner in France in the field of laser welding of polymers, and played an active part in the development of that assembly solution, with its many benefits including speed, quality, flexibility, precision and superior appearance. This technique is particularly suitable for the sealed encapsulation of electronic circuits.
Description
Examples
Our expertise
Training
Description
DescriptionExamplesOur expertiseTraining
Laser welding of polymers
The assembly of polymers using laser beams is a method where the two surfaces are put into contact and fused simultaneously using controlled energy density.
Unlike the conventional laser technique, there is no need for colour or any particular additive.
Polymer welding can sometimes be complex or impossible using conventional assembly methods (presence of circuitry, need for sealing, appearance etc.).
In that case, laser welding of polymers is one of the best alternatives. This innovative solution makes it easy to assemble plastics in a variety of configurations (clear-to-clear, edge-to-edge or conduction) by fusing together the two materials put in contact using a tool.
This technique makes it possible to weld transparent and opaque materials alike, with a perfect finish.
Plastic welding is used in many industries such as:
medical engineering (sensors, housings, bags etc.)
IoT
luxury goods
List of materials:
PE, PP, PA6, PA 6.6, PA11, PA 12, ABS, PC, PMMA, PEEK, PET, thermoplastic composites etc.
Benefits
New assembly process with no additives or filler material
Welding of transparent and opaque materials
Process compatible with medical engineering regulations
3D treatment of parts
Appearance of the seam
Advantages
Laser welding of polymers offers many advantages from all standpoints. First of all, it makes for easier implementation and execution, thanks to the simplification of the geometry of pieces.
Laser welding produces a clean and aesthetic result, since it is contactless and welding is carried out from inside the part (so it is not visible). This welding process is very practical and adapts to a large variety of parts (flat or 3D). Laser welding offers high mechanical strength with reduced residual stresses, and allows sealing. The material is heated locally, so as to not interact with peripheral components.
The technique also provides an effective way to save time and reduce production costs.
Assembly of similar materials (composition and colour)
New manufacturing possibilities
Welding of materials with titanium oxide
Reduced costs
Examples of applications
Laser welding of polymers is used in many industries: medical engineering (instrumentation, medical bags, microfluidics), packaging (containers, film, packaging), luxury goods (bottles, caps, cases), aviation (multi-layer structures), automobile manufacturing (lighting, fluidics housings, honeycombs).
Laser welding of polymer interior linings on door panels.
Advantages:
No use of adhesive
Shorter cycle times
Invisible seams
High flexibility
Automotive
Laser welding of polymer linings
Laser welding of polymer interior linings on door panels.
Advantages:
No use of adhesive
Shorter cycle times
Invisible seams
High flexibility
Design and development of a special composite laser welding head for a robotic machine that is the only one of its kind in the world. This machine, which is part of a state-sponsored applied research project bringing together Airbus, Astrium, Coriolis Composites, EADS and ECN, is intended for designing the aviation structures and space launchers of the future.
Advantages:
New possibilities for the design, manufacturing and assembly of composites, adapted for complex parts with large dimensions
The WOLF TP programme is funded jointly by the European Union.
Europe is supporting Alsace through the European Regional Development Fund or the European Social Fund.
Aeronautics
Manufacturing of composite aviation structures
Design and development of a special composite laser welding head for a robotic machine that is the only one of its kind in the world. This machine, which is part of a state-sponsored applied research project bringing together Airbus, Astrium, Coriolis Composites, EADS and ECN, is intended for designing the aviation structures and space launchers of the future.
Advantages:
New possibilities for the design, manufacturing and assembly of composites, adapted for complex parts with large dimensions
The WOLF TP programme is funded jointly by the European Union.
Europe is supporting Alsace through the European Regional Development Fund or the European Social Fund.
Laser welding of elements in edge-to-edge configuration without the use of additives.
Advantages:
Appearance
Mechanical strength
Welding time
Cosmetics
Laser welding of polymer containers
Laser welding of elements in edge-to-edge configuration without the use of additives.
Advantages:
Appearance
Mechanical strength
Welding time
Lasers make it possible to hermetically weld polymer elements with the most diverse geometries (tubes, films, plates etc.) in areas with limited accessibility.
Advantages
No pollution of the encapsulated items
Tightness
Simplification of connectors
Automation, high speed
Healthcare
Laser welding of medical bags
Lasers make it possible to hermetically weld polymer elements with the most diverse geometries (tubes, films, plates etc.) in areas with limited accessibility.
Today, laser welding is an operational method for assembling thermoplastics. The technology, which is fully mastered, offers a number of possibilities and addresses a multitude of needs such as speed, high quality, flexibility, precision and superior appearance.