Related Sponsors

What is EDM?

Home » Manufacturing » EDM » What is EDM?

EDM stands for Electrical Discharge Machining. This process is now widely used in processing because of its ability to remove debris from finished parts. It works by eroding material in the path of an electrical discharge. The part is connected to a power supply. This connection coupled with the electrode forms a completed electrical path. This path creates a spark that burns the debris off the finished part.

This type of manufacturing is considerably more affordable than conventional manufacturing processes, and is the most desired type to use, especially when the accuracy of parts is vital. Many manufacturing managers love this type of manufacturing because it is commonly associated with using CNC machines. CNC is a computer numerical control type machine that runs by means of a pre-programmed computer module. Once the machine is programmed, it can run itself. This coupled with EDM makes manufacturing a dream.

EDM comes in two types: wire and probe (also known as die sinker). Wire EDM is used mainly to cut extra shapes from the part or assembly, depending on what is being developed. The whole EDM process works by first determining if a hole has to be cutout of the material. If so the CNC machine may be used to cut the proper sized hole. After this a wire is fed through the hole and connected to the power supply.

Next Page: How the EDM Process Works

Related EDM Articles