Page 5 - Fall 2024 EDM Today

EDM Today Magazine
EDM Today Magazine
EDM Today Magazine WHAT IS TECHTIPS • FALL 2024

WIRE WOBBLE?

EDM Today Magazine
EDM Today Magazine (AND DOES IT MATTER?) EDM Today Magazine

BY ROGER KERN
PRINCIPAL CONSULTANT
INTERNATIONAL TECHNOLOGY PROFESSIONALS

In order to achieve high accuracy in Wire
EDM skim cutting, it is essential that our
cutting tool, the wire, be extremely stable as
EDM Today Magazine EDM Today Magazine EDM Today Magazine
it traverses the thickness of the workpiece.
The stability during that traverse is affected
by the combination of the three profi le
properties associated with EDM wire as
shown in Figure 1.

The primary difference between the three EDM Today Magazine
EDM Today Magazine EDM Today Magazine

Figure 1

properties is period of the wavelength of Figure 2
EDM Today Magazine EDM Today Magazine EDM Today Magazine
the undulations; that is, the relative linear
distance between each instance of deviation
from the mean linear profi le.

STRAIGHTNESS
The straightness of a wire (depicted in Figure 2 is
measured by suspending it vertically and measuring
the deviation from verticality utilizing a fi xture similar
to the one shown in Figure 3). Figure 3
EDM Today Magazine
EDM Today Magazine EDM Today Magazine EDM Today, Fall 2024 Issue

88