In the News

Electrical Discharge Machining (EDM)

The demands placed on manufacturing today, facilitates the necessity of EDM. With the development and use of more exotic materials, conventional machines use will reach their limits. Machining complex and highly accurate parts in hard materials will direct engineers to companies with EDM capabilities. North Cape Manufacturing is that company.

Accuracy: EDM is very accurate. Tolerances of .0002 are easily obtainable.

Flexibility: EDM can create shapes and contours that other types of machines are not able to create.

Materials: EDM can be used on any conductive material whether it has been hardened or not. Stainless steel, titanium, tungsten, copper, carbide as well as tool steels.

Prototyping: EDM is a rapid process, due to the speed in which designs can be changed.

Delicate: EDM is a delicate machining process because there is no cutting force.

Finish: EDM surface can be as fine as 4Ra without polishing. No need for secondary operations.

Distortion: EDM is capable of cutting hardened materials. Forms can be machined after heat treat thereby eliminating the problem of distortion caused by heat treat.

Production: EDM is a cost effective method of producing many complex parts by being able to stack parts with part repeatability that run "lights out."

North Cape Manufacturing operates 3 Charmilles EDM Machines

(From left ot right)
Charmilles 240 Robofill - Wire EDM
Charmilles HD 20 - Hole Popper
Charmilles Roboform 23 - Graphite Sinker EDM