DOUBLE CŒUR produces metal parts using industrial laser welding for manufacturers in the Haut-Rhin and Mulhouse regions. Located in Illkirch-Graffenstaden, around 1 hour from Mulhouse, our production site handles small and medium-sized production runs, with quality requirements calibrated for the automotive, energy and e-mobility sectors.
Mulhouse and its industrial basin: top-level technical requirements
The Mulhouse area is home to a dense and diversified industrial fabric (automotive equipment manufacturers, energy players and precision subcontractors) whose assembly specifications are among the most demanding in Alsace. These manufacturers need a partner who understands their production constraints, responds quickly and delivers compliant parts right from the first batch. This is precisely what DOUBLE CŒUR is structured to do, with an organization designed to absorb emergencies, increased production rates and complex technical configurations.
Our geographical proximity to Mulhouse is not just a marketing argument. In concrete terms, it means shorter transport times, the possibility of rapid technical visits to our site, and direct communication with our process engineers without intermediaries.
A complete service, from development to delivery
Our laser welding subcontracting services cover the entire production cycle. We are involved right from the product development phase, to validate the process and secure the technical choices made prior to series production. We also handle urgent production runs, residual batches at the end of a cycle, and one-off needs arising from machine overload or equipment downtime. Our multi-axis robotized cells, combined with high-power lasers up to 10 kW, enable us to process parts from a few millimeters to several meters in size, in configurations that traditional processes cannot achieve with the same level of precision.
Materials and configurations adapted to the Mulhouse area
Manufacturers in the Haut-Rhin region work with a wide variety of often demanding materials. DOUBLE CŒUR masters laser welding on aluminum and aluminum alloys, stainless steels, titanium, copper, Inconel and nickel-based superalloys. This material versatility is a direct advantage for sectors such as the automotive industry – where aluminum and copper dominate electrical components – or the energy sector, which require assemblies in stainless steel or corrosion-resistant alloys. The low heat-affected zone of the laser process preserves the metallurgical integrity of the parts and guarantees the expected mechanical strength, even on fine geometries or tight-tolerance assemblies.
Documented quality and ISO 9001 certification
DOUBLE CŒUR is ISO 9001:2015 certified. Each production run is subject to complete recording of welding parameters, dimensional checks and, according to customer specifications, non-destructive testing. Traceability is ensured on a part-by-part basis when required by the specifications. For our customers in Mulhouse, who operate in regulated environments, this rigorous documentation is not an option: it is integrated right from the quotation phase and maintained throughout production.
An industrial partner, not just an executor
DOUBLE CŒUR was born within IREPA LASER, a reference center for laser technologies for over forty years. This singular origin means that our teams don’t just run programs: they analyze your constraints, suggest process adjustments and anticipate technical risks before they become production problems. A dozen specialized engineers and technicians, over twenty industrial lasers and a quality culture built up in the most demanding sectors (aeronautics, space, energy) constitute an infrastructure that few subcontractors in France can offer to manufacturers in the Mulhouse area.
Whether you need a partner for a one-off series or a regular subcontractor capable of integrating into your production chain, DOUBLE CŒUR adapts to the volume and pace that suit your organization.
Do you have a laser assembly project in the Haut-Rhin or Mulhouse region? Send us your drawings or specifications. Our engineers will get back to you within 48 hours with initial technical feedback and a quotation tailored to your volume.
Contact us via our contact form or call our team directly on +33 (0)3 88 65 54 00.