The Beginning of Ram Type EDM (Sinker)

The Beginning of Ram Type EDM (Sinker)

Ram type (also called sinker type) EDM was the first type of Electrical Discharge Machining used in the manufacturing process. I was lucky enough to see the first EDM machine made for the purpose of eroding metal. Most historians give credit to a metallurgist couple...
EDM and Linear vs Ballscrews

EDM and Linear vs Ballscrews

An overview of the two most common drive systems in EDM machines today and what differences they bring to the EDM process. Ballscrews have been with us for many years and have proved to be accurate, reliable, easy to maintain and easy to fit many different...
Wire EDM: GIGO

Wire EDM: GIGO

Garbage In Garbage Out: Mistakes in the Wire EDM are most often made before the start button is pressed. As the operator, you are often pushed to get the machine cutting, because when it’s not cutting, it’s not making money, right? WRONG! What if in the process of...
Wire EDM: How Much Better Is Bigger?

Wire EDM: How Much Better Is Bigger?

Large-diameter wire for EDM has been around for decades, but just recently it has taken the market by storm. To understand how and why this is happening I will go back to my personal experiences as a WEDM operator. In 1976, the industry-standard wire diameter was...