What is Die-sinking EDM?

Die-sinking electro-erosion, also known as sinker EDM or Die-sinking EDM, is a machining process to shape and form metal parts with high precision. It involves the use of electrical discharges, which materialize as sparks, to remove material from a workpiece.

A shaped electrode, often made of graphite or copper, will create a negative impression in the workpiece, usually consisting of a conductive material such as steel. The electrode and the workpiece are submerged in a dielectric fluid and a potential difference is applied between them. As the electrode approaches the workpiece, sparks jump across the gap, removing material from the workpiece and forming the desired shape.

This process is particularly useful for creating intricate and complex shapes in hard material that would be challenging or nearly impossible to achieve with traditional machining methods. It is widely used in the manufacturing of molds and dies, and for creating precision components in the aerospace and medical industries.

Why come to GF Machining Solutions for Die-sinking EDM?

GF Machining Solutions is the pioneer in the development of Die-sinking EDM, combining the experience of worldwide leaders Agie and Charmilles, who have developed machines since 1954. GF Machining Solutions has pushed further the boundaries and is setting today the new standards of EDM technology.

All AgieCharmilles FORM machines from GF Machining Solutions feature the Swiss-made Intelligent Power Generator (IPG), which represents the top-tier technology in the market. Powered by Tecform Algorithmic Intelligence, they bring 70 years of EDM expertise for any sinker EDM machining project, whether it be ultraprecise machining, mold making, or simply a process requiring high-precision performances. Discover our unique innovations that allow our machines to provide outstanding performances.

With a reduction up to 43% of the daily energy consumption compared to the previous generation, our new generation of Die-sinking EDM machines is ready for the future. This important improvement is possible thanks to the smart module Econowatt during standby mode, to the latest generation of GF Machining Solutions’ Intelligent Power Generators and to higher temperature dielectric regulation.