Akris Group > Our expertise > Electrical Discharge Machining & Laser
Au sein du Groupe AKRIS, l’électro-érosion (EDM) représente l’une de nos expertises les plus pointues pour l’usinage de matériaux réputés “in-usinables” par les méthodes conventionnelles. Within the AKRIS Group, electrical discharge machining (EDM) represents one of our most advanced areas of expertise for the machining of materials considered “un-machinable” by conventional methods.
This technology is at the heart of our high functional performance promise. It allows for the creation of complex geometries, internal sharp corners, and extremely fine surface finishes, which are essential for press tooling, high-precision molds, or critical aerospace components.
Wire Electrical Discharge Machining (WEDM) is an electrical discharge cutting technology using a thin conductive wire to cut complex shapes in blocks of conductive materials.
• Dimensional precision : Our wire EDM centers allow us to achieve micrometric tolerances, guaranteeing a perfect fit for your industrial tooling.
• Material integrity : This process generates no mechanical stress on the part, which is crucial for fragile materials or extremely thin-walled parts machined at Sumca.
• Repeatability and series : Thanks to our control protocols, we ensure absolute repeatability for production series of cutting inserts and wear parts.
Sink Electrical Discharge Machining (or sinker EDM) consists of reproducing the shape of an electrode (often made of copper or graphite) directly into the material.
• Complex and Blind Shapes : This is the ideal solution for creating cavities that are impossible to achieve via 5-axis milling, particularly for compaction molds and technical inserts.
• Controlled Surface Finishes : We are capable of generating specific surface textures, ranging from technical graining to mirror polishing, directly during the erosion phase.
• Carbide Machining : Under the expertise of brands like Usicarb and CTS, we have mastered sinker EDM in carbide for the production of high-performance compaction tools.
The addition of laser technology to our catalog of expertise meets the needs for speed and micro-precision for certain specific materials.
• Precision Cutting and Engraving : Laser technology allows for work on miniature components while keeping the Heat Affected Zone (HAZ) to an absolute minimum.
• Technological Complementarity : Laser technology complements our machining and EDM (Electrical Discharge Machining) capabilities to provide the most relevant technical and economic solution based on the complexity of your project.
Whether in EDM or laser technology, the AKRIS Group applies absolute rigor, dictated by the stringent requirements of the nuclear and defense markets.
• Zero Variability : Our industrial organization is calibrated to eliminate any process drift. Every part produced by EDM is an exact reflection of the customer’s technical specifications.
• Total Traceability : Every electrical discharge parameter is recorded, guaranteeing full transparency for critical applications where safety is paramount.
• Perfect Repeatability : Our machine maintenance and calibration protocols ensure that quality remains constant throughout production runs spanning several months.
By choosing AKRIS Group , you benefit from the harmonization of our machine parks . Thanks to our shared ERP, we synchronize our EDM (wire & sink) workshops across our different sites.
• Responsiveness and Lead Times : Should one site experience a production overload, our other expert units can take over immediately.
• Client Security : This synchronization capability provides major capacity security for your large-scale projects, guaranteeing strict adherence to delivery deadlines without ever compromising on precision.
Technological expertise is nothing without a prior methodological analysis. For every complex EDM project, we use our proprietary tools :
• Geogleiss : To anticipate cutting constraints and optimize wire trajectories or electrode shapes.
• Vision 360 : To integrate the constraints of your specific market (medical, energy, electronics) right from the design phase and offer you the most efficient technological approach.
