Industrial laser welding: process development and production
Metal, polymers or glass: IREPA LASER masters laser welding for the most demanding industrial applications. Bespoke process development, industrialisation and series production.
Your laser welding project, from design to production
Laser welding demands precise control of the interactions between the beam, the material and the part geometry. Every application is different: materials, thicknesses, thermal and mechanical stresses, certification requirements.
IREPA LASER supports manufacturers from the design phase through to series production, across three families of materials: metals, polymers and technical glass. Our processes are developed on industrial equipment, qualified and documented so they can be transferred directly to your teams.
Our expertise by material
Laser welding of metals
- Development of mechanical, sealed, thermal or electrical joints according to the required function
- Metal assemblies in small and medium series, up to 5 metres
- Carbon steels, stainless steels, aluminium and its alloys, copper, titanium and its alloys, Inconels, Waspaloy, precious metals, etc.
Laser welding of polymers
- Sealed joints in thermoplastics, without adhesive or additives
- PE, PP, PA, PC, PMMA, PEEK, PET and thermoplastic composites
- Transmission and conduction welding of polymer parts
Laser welding of glass
- Direct glass-to-glass joining, without adhesive or consumables
- Soda-lime glass and borosilicate, in both thick and thin sections
- Hybrid glass-to-metal and glass-to-semiconductor joints (Si, SiC, etc.)
Our achievements in laser welding
Components in aluminium alloys, stainless steel or carbon steel: our metal laser welding processes meet constraints that conventional techniques cannot handle, with precision, leak-tightness and protection of sensitive components. Our expertise also extends to glass-to-silicon and polymer welding.
The sectors we support
Our laser welding processes are deployed in industries where joint performance is non-negotiable: critical materials, certification requirements, repeatability constraints.
Our laser welding services
Comprehensive support for all your laser welding projects
IREPA LASER supports you at every stage of your project, whether metal, polymers or glass :
Project engineering
Design and validation of your laser joints, whatever the complexity or material.
Laser process development
Parameter optimisation, quality control and reliability of weld seams and joints.
Industrialisation & pre-series
Process validation, production ramp-up and performance testing.
Production
Production of metal assemblies in small or medium series for all types of materials
Training
Upskilling your teams in laser processes and laser safety.
Support & Assistance
Technical follow-up, advice and continuous optimisation throughout the project.
From feasibility to series production, IREPA LASER covers every stage of your laser welding project, whatever the material.
Laser welding training
IREPA LASER offers laser welding training for all levels: from process fundamentals to advanced parameter control, including laser safety and applied metallurgy.
Our programmes combine theoretical input with practical work on our industrial equipment. They are aimed at operators, technicians and engineers wishing to acquire or deepen their mastery of laser welding processes.
Your questions about laser welding
IREPA LASER masters laser welding on a wide range of industrial materials:
- Metals: carbon steels, stainless steels, aluminium and its alloys, copper, titanium and its alloys, Inconels, Waspaloy, precious metals and specific alloys.
- Engineering polymers: PE, PP, PA6, PA6.6, PA11, PA12, ABS, PC, PMMA, PEEK, PET, thermoplastic composites, etc.
- Glass and transparent materials: soda-lime glass, borosilicate, special glasses for optical or microfluidic applications.
Our processes adapt to the mechanical, thermal and optical properties of each material to ensure precision, reliability and joint integrity.
Laser welding offers benefits for all types of materials:
- Precise, reproducible joints with tight tolerances for critical parts.
- Non-contact process, limiting the risk of distortion or contamination.
- Ability to weld complex, 3D parts or parts containing electronics, even for polymers and glass.
- Invisible, aesthetic and leak-tight joints, essential for medical, electronics or luxury goods.
- Fewer production steps and consumables (adhesives, additives, furnaces).
Yes, laser welding can handle multi-material assemblies and sensitive parts:
- Electronic components or integrated circuits encapsulated in polymer or glass.
- Metal parts with integrated plastic or optical inserts.
- Leak-tight, clean and reliable joints, with no risk to sensitive components.
Our processes are optimised to deliver consistent results on every part:
- Laser parameters tailored to the material and geometry.
- Systematic testing of mechanical strength, leak-tightness and joint precision.
- Standardised procedures for industrialisation and repeatability.
Yes, our services are modular to suit your needs:
- Engineering and design of metal, polymer or glass assemblies,
- Development and optimisation of laser processes,
- Industrialisation, pre-series and production ramp-up,
- Validation, technical follow-up and ongoing assistance.
Each stage ensures the safety, reliability and industrial performance of the assemblies.
Our processes are suited to the most demanding applications:
- Aerospace & Space: complex structures, critical materials,
- Automotive & e-mobility: sensors, fluidic systems, technical components,
- Electronics & IoT: encapsulation and protection of sensitive components,
- Luxury & watchmaking: aesthetic joints,
- Energy, Nuclear, Defence: performance, reliability and safety.
Deepen your knowledge
For those wishing to understand the principles, technologies and best practices of laser welding, a detailed educational page is available.
