Sinker EDM

    For shorter lead times and greater process reliability

    Tebis puts you in control of the complexities of sinker EDM.  Tebis supports the entire process from automatic detection of the areas to be eroded to convenient object-oriented design of the electrodes, their methodical NC machining, to measurement of the finished electrodes. All parameters that are important for manufacturing and use of the electrodes are automatically managed in electrode projects.

    Quickly and easily assemble complete electrodes
    Fully automated electrode process with flexible manufacturing cells
    Quality control integrated in the process
    Comprehensive NC functions with automation


    Automatically detect areas for sinker EDM

    Let Tebis support you in the automatic search for all areas that still need to be machined after milling. This analysis before sinker EDM is based on the smallest milling tool used.

    Quickly assemble complete electrode

    The burn surfaces of the electrode can be resolved from the geometry at the click of a button. Use powerful interactive graphical functions to lengthen and complete the electrode. A wizard guides the user through assembly of the complete electrode for sinker EDM – including the probe frame, base, holder and the requisite raw material.

    Automated NC programming

    The structured design of the electrodes means that they are perfectly prepared for automated NC programming. This is achieved using the individually prepared machining sequences stored in libraries and material removal strategies proven in practice. Tebis uses these to calculate contiguous CNC programs automatically for roughing, finishing and residual stock machining.
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    Integrated quality control

    Tebis supports you in sinker EDM with quality control integrated in the process so you can produce maximum quality. This is achieved by measuring the electrode and transmitting offset data and the actual spark gap to the sinker EDM machine.

    Management and process integration


    You can manage all information for sinker EDM in the clearly structured object-oriented electrode projects. In addition to the electrode, holder and blank, this includes the NC programs for milling, eroding paths, NC programs for measurement and the documentation. And if you want maximum automation – with flexible manufacturing cells for electrodes and sinker electrodes – all the necessary information for cell control is available in the electrode project. This ensures a reliable automated electrode process.

    Additional functions

    • Create EDM paths
    • Create repeat electrodes
    • Generate documentation
    • Holder and blank library
    • Completeness analysis
    • Multiple setup of electrodes

    Machining methods

    Learn more here about the possible machining methods for sinker electrodes:

    Customer response

    What our customers are saying about sinker EDM:

    Automating the mold insert process

    "We achieved a 60% increase in manufacturing efficiency using sinker EDM." 

    Markus Rausch, Junior director and technical operations manager

    RAUSCH formenbau GmbH, Hösbach, Germany

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    A company on track for success

    "We're saving time, we're manufacturing much more effectively and we're achieving better results faster and with fewer personnel."

    Kevin Taverner, Vice president

    Hi-Tech Mold & Engineering, Inc., Fraser, MI, United States

    Read full story

    More information

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    Electrode design

    EDM areas can be automatically analyzed in Tebis Electrode Design. Users can use this feature to generate electrode geometry with powerful CAD functions. Using a design wizard and libraries ensures standardization and greater reliability when creating complete electrodes.  

    CNC programming

    Tebis CNC programming greatly reduces programming and setup time in the overall process chain. Tebis combines speed, reliability and a high degree of automation with the greatest possible flexibility. The portfolio includes industry-specific solutions for all areas, including 2.5D, 3D and 5-axis machining.

    CNC automation
    Tebis Automill® evaluates the digital CAD part model and accesses a previously stored structure of digital representations of the company's manufacturing environment and the manufacturing knowledge stored in templates to calculate the NC programs.
    In-process measurement

    Establish the necessary process reliability during unattended late shifts and night shifts with automatic checking and correction of part orientation and blank dimensions. This lets you make the best possible use of highly automated machine centers.