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Wire Erosion & EDM Services | Precision CNC Machining – H V Wooding

Precision Wire EDM (Electrical Discharge Machining) services with over 40 years of expertise. Tight tolerances, fast turnaround, and proven results for sectors including aerospace, medical, motorsport and electric vehicles.

Experts in Wire Erosion Since 1985

For four decades, H V Wooding has been a trusted provider of Wire Erosion and Wire EDM services, delivering exceptional precision for complex components. Our expertise enables us to achieve tolerances as fine as ±5 microns – around 20 times thinner than a human hair – making us a leading UK partner for highly intricate or delicate parts.

What is Wire EDM / Wire Erosion?

Wire Erosion, also known as Wire EDM (Electrical Discharge Machining), is a non-contact CNC machining process that uses a thin wire and electrical sparks to cut through conductive materials. Unlike traditional methods, it causes no mechanical stress and produces burr-free, ultra-precise cuts.

Key benefits of Wire EDM:

  • Cuts hard or exotic materials including titanium, copper, and medical-grade alloys

  • Delivers exceptional surface finishes without the need for secondary machining

  • Capable of cutting complex shapes, fine holes, and internal contours

  • Ideal for small, delicate, or thin-walled components

  • No distortion or tool pressure – suitable for fragile or heat-sensitive parts

40 years of Wire EDM expertise, ±5 micron precision, fast turnaround in the UK

Our EDM Capabilities

Our facilities operate 24/7 and include state-of-the-art Charmilles wire erosion machines featuring:

  • Automatic wire feeding

  • Submerged cutting for thermal control and debris removal

  • Large component capacity (up to Ø500mm x 500mm depth)

  • Multi-loading beds for batch and volume production

  • Latest generator technology for optimal surface quality

Industries We Serve

We supply wire eroded components to a wide range of sectors including:

We are also specialists in EDM-cut motor laminations, available as individual pieces or pre-bonded stacks – particularly for high-performance applications like Aerospace, F1 and Defence.

Why Choose H V Wooding for EDM?

40 years of Wire EDM expertise, ±5 micron precision, fast turnaround in the UK. Wire erosion components for research, medical, automotive & EV sectors. Experts in Motor Laminations from prototype to volume production.

Case Study: CERN Large Hadron Collider

Wire erosion was used to produce high-grade steel yokes for the Large Hadron Collider. These components were cut to sub-5 micron tolerance, showcasing our ability to meet the world’s most demanding specifications. Read more in our CERN case study ›

You can view our latest Plant List here.

 

You can find us at exhibitions throughout the year, and see our components  – exhibitions include Coiltech, Cenex Expo, Battery Tech Expo and The Battery Show Europe. Find out more on our upcoming exhibitions page.

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Find out more:

To explore how we could make a difference to your organisation, contact us for a free assessment of potential opportunities.







    Contact us today

    Wire Erosion is typically used in these sectors:

    View all our sectors

    Case studies

    Strategic outsourcing partner

    A leading international manufacturer of electrical accessories were producing all components in house. In order to focus on core activities and increase profitability, they needed a strategic outsourcing partner that they could trust. After a detailed evaluation, they decided to outsource all presswork components to HV Wooding.

    High Volume of Metal Stampings and Busbars

    A leading Global manufacturer of Electrical Automation and Control Solutions have a high volume of Metal Stampings and Busbars used within their product groups. These include regular repeat items and also spot ordered parts that are delivered to multiple locations.

    Looking to reduce the cost of manufacture

    UK Atomic Energy Authority is a UK government research organisation responsible for the development of nuclear fusion power. Requirement to manufacture Busbars for MAST upgrade.

    Science & Research - CERN

    A twin-aperture, 10 m long, prototype magnet was designed by CERN to gain experience in the construction of full scale twin-aperture Dipole Magnets. HV Wooding were given the task to produce the Twin-aperture Dipole magnet Laminations. Click to read a Case study demonstrating our ongoing work with CERN on the Large Hadron Collider - and the positive impact from our input.

    Next generation of Tidal Turbines

    A Global manufacture in the “Renewables Sector” are developing the next generation of Tidal Turbines. In order to optimise engineering performance they needed a partner to help facilitate both the design and manufacturing solution of “Laminate Sections” for the Permanent Magnet Generator.

    Next Generation of Offshore Wind Turbines

    A worldwide manufacturer of Wind Turbines, developing the Generator Busbars for the next generation of offshore 7MW machines.

    “Hybrid Drivetrain” for Motorsport and Transportation applications

    A Global manufacturer of “Hybrid Drivetrain” for Motorsport and Transportation applications. A key market for flywheel energy storage technology is the public transport sector. This technology can save fuel and reduce green house gas emissions by up to 30% in a city bus for example.

    Ventilator Challenge UK

    British engineering firms were called on to switch to making medical ventilators as concern grew about the effects of the coronavirus pandemic.  This follows an appeal by Boris Johnson, who held an emergency conference appealing for an urgent effort to address the national shortage.

    View more case studies

    Related articles and news

    How Wire Erosion Achieves ±/-5 Micron Precision: A Deep Dive

    Wire erosion delivers exceptional accuracy where conventional machining falls short. In this article, we explain how the EDM process achieves ±/-5 micron precision, backed by 40 years of H V Wooding’s technical expertise.

    Exhibitions 2025

    We have a very busy exhibitions and conference calendar for 2025, meeting existing clients and introducing ourselves to new contacts, and learning more about the industries we serve. Exhibitions include: The Battery Show, Future Propulsion Conference, Battery Tech Expo, Cenex Expo, NVN Forum, SMMT Connected, Power Transmission & Technology Expo & Advanced Engineering.

    HV Wooding Unveils Comprehensive Brochure

    We are excited to reveal our new brochure highlighting core capabilities in wire erosion, laser cutting, presswork & tooling, powder coating, and electroplating. The brochure offers an in-depth look into the intricate processes involved in crafting busbars, core packs, and precision components.

    PAST EVENT: The International Nuclear Manufacturing Summit 2022

    Hosted by the Nuclear AMRC, the International Nuclear Manufacturing Summit 2022 will showcase opportunities in the major programmes and explore how suppliers can win work now and over the next 30 years.

    PAST EVENT: Coiltech Italia 2022

    Coiltech is the most qualified electromechanical Meeting-Point in its sector. The range of products offered by companies that exhibit at Coiltech covers all the production steps of electric motors, generators, electric pumps, transformers, and windings in general. Following a fantastic show in Germany (April 2022) – we will be back at Coiltech Italia, 28-29th September in Podenone, Italy. We will be showcasing our Core Packs and Busbars for electric motor applications.

    Investing in Quality

    To assist the constantly evolving challenges that face our highly experienced quality team at H V Wooding, we have recently invested in the super accurate Trimos height gauge and the Vision inspection system ‘InspecVision Planer’ for fast and accurate measurement of multiple parts.

    Ventilator Challenge UK

    HV Wooding are proud to be a part of the #VentilatorChallengeUK consortium. This consortium, alongside the likes of Airbus, BAE, Ford, Siemens and Rolls Royce are manufacturing vital ventilators to assist with the current pandemic – saving lives across the UK

    JOSCAR Accreditation

    The JOSCAR Registration Mark is valued by some of the largest purchasers in the defence community and indicates that our organisation has gone through the process required to demonstrate its commitment and credentials to the industry.

    Electric Vehicle boost for HVW

    Having been given a glimpse of a potential future should we make the switch to Electric Vehicles - with less air pollution and improved air quality being documented during the COVID-19 lockdown - more buyers are realising the benefits of moving away from petrol and diesel cars.
    View more news