When it comes to EDM electrodes, having the best copper is essential for optimal performance, reports EDM Plus, a UK specialist in EDM machine sales, EDM consumables sales, EDM subcontracting and other related services. The company says that copper is an essential part of the process, as it provides the electrical current needed to create the spark that powers the machining process. The right copper for EDM electrodes will ensure consistent and successful machining.

Several types of copper are available for EDM electrodes, including oxygen-free high-conductivity (OHFC) copper, electro-refined (ER) copper and electrolytic tough pitch (ETP) copper.

For EDM electrodes, OHFC is the preferred choice because it offers excellent electrical conductivity, low resistivity and good thermal stability. It also has higher resistance to corrosion than other types of copper and is suitable for use in harsh environments.

When selecting EDM electrodes, EDM Plus says machine shops should look for those made with a high-grade OHFC copper alloy. This type of alloy offers enhanced wear resistance and is suitable for use in a wide variety of applications. Additionally, it has a relatively low coefficient of friction and can withstand higher temperatures for longer periods of time than other types of copper.

For added protection against wear and tear, consider using EDM electrodes made from an alloy containing additional elements like chromium or molybdenum. These alloys are more resistant to corrosion and are more suitable for use in corrosive environments. They also tend to offer improved properties when exposed to high temperatures or pressure.

Finally, keep in mind that the cost of EDM electrodes varies depending on the type of copper used. OHFC is generally more expensive than other types of copper, but its superior performance makes it worth the investment.
For further information www.edmplus.co

A new U6 HEAT from Makino has replaced two outdated wire-cut EDM machines at orthopaedic implant and associated surgical instrument manufacturer MatOrtho. The new wire-erosion machine arrived at MatOrtho’s manufacturing facility in Leatherhead towards the end of March 2023, with installation performed by NCMT, the sole UK sales and service agent for Makino.

David Shand, operations director at MatOrtho, says: “The new Makino wire EDM will significantly increase our instrument production capacity compared with the two machines it replaces. Greater accuracy and speed will allow us to meet our R&D needs and support future sales. This latest significant investment comes at an important time in our transformation as we expand to meet the growing demand from our worldwide customer base.”

Selection of the Makino was due to the quality of both the machine’s build and the service received during the sales process, right through to training at NCMT’s Technical Centre in Coventry. Another important aspect was the environmentally friendly operation of the U6 HEAT, which has low running costs, particularly in respect of reduced wire consumption. Shand adds that it will help drive the company’s transition towards a net-zero carbon footprint, especially as only one EDM machine is now drawing power rather than two.

NCMT’s Jon Marshall, Makino EDM sales manager UK south, says: “The Makino U6 HEAT is geared towards high-performance production which, together with the machine’s inherent precision, makes it a perfect fit for MatOrtho’s requirements for both production and research.It’s been a pleasure dealing with Paul Clancy, the company’sproduction engineering manager, and the whole team throughout the process and we at NCMT look forward to assisting MatOrtho with its future investments.”
For further information www.ncmt.co.uk