top of page
  • Writer's pictureMixPlay Magazine

An Introduction to Electrical Discharge Machining (EDM) Die Sinking

Updated: Feb 28, 2023

EDM Die Sinking, also known as Electrical Discharge Machining Die Sinking, is a machining process used to produce complex shapes or cavities in hardened materials such as steel or titanium. It involves using an electrode, typically made of graphite or copper, to erode a workpiece by means of electric sparks.



In the EDM Die Sinking process, the electrode and workpiece are submerged in a dielectric fluid, usually a hydrocarbon-based oil, and a voltage is applied between them. This creates a series of electrical sparks that erode the workpiece, shaping it according to the shape of the electrode. The electrode is controlled by a computer numerical control (CNC) system, which enables precise and repeatable machining of complex shapes.


EDM Die Sinking is commonly used in the production of injection molds, forging dies, and other complex shapes that cannot be easily machined using conventional techniques. It is also used in the aerospace and medical industries, where precision machining of hard materials is critical.


EDM Die Sinking is commonly used in the production of molds and dies for the manufacture of components used in the automotive and semiconductor industries. For example, EDM Die Sinking can be used to produce molds for the injection molding of plastic components used in automotive electronics or semiconductor packaging. Additionally, EDM Die Sinking can be used to produce dies for the stamping of metal components used in automotive or semiconductor applications.


There are several types of EDM Die Sinking machines that are commonly used in industry. Here are a few examples:


  1. Ram EDM: This is the most common type of EDM Die Sinking machine. It uses a reciprocating electrode (ram) to erode the workpiece. The ram can move vertically, horizontally, or at an angle, depending on the shape of the workpiece being machined.

  2. CNC EDM: This is a computer-controlled version of the Ram EDM machine. It uses a CNC system to control the movement of the ram and the electrode, allowing for precise and repeatable machining of complex shapes.

  3. Wire EDM: This type of machine uses a thin, electrically conductive wire to erode the workpiece. The wire is controlled by a CNC system, allowing for precise cutting of complex shapes.

  4. Small Hole EDM: This type of machine is used to drill small, deep holes in hard materials. It uses a small electrode (typically less than 1mm in diameter) to erode the workpiece.

  5. Orbital EDM: This type of machine is used for machining curved or angled surfaces. It uses a rotating electrode that follows the shape of the workpiece, allowing for precise and smooth cutting.


These are just a few examples of the types of EDM Die Sinking machines that are commonly used in industry. The specific machine used will depend on the application and the requirements of the workpiece being machined.


For further source on EDM Die Sinking services, we recommend you to look out for Dat Chi Technology at https://www.datchitechnology.com/ for more information. Dat Chi Technology recognized brand in the CNC industry, being a pioneer for the manufacturing of automotive electronics and semiconductor parts globally, especially in Vietnam and Japan.

11 views0 comments

Recent Posts

See All

Commentaires


bottom of page