22
Basic theory and function
Section 3
AN EXAMPLE OF CUTTING A LEAD-IN WHEN CUTTING OUT A DISK SHAPED OBJECT
AN EXAMPLE OF CUTTING A LEAD-IN WHEN CUTTING HOLE IN AN OBJECT
When cutting an object, particularly a pattern shape, where the torch must pierce or re-fire in-line at an inter-
section of a cut, a lead-in cut should be employed. A lead-in is a cut that is made in the disposable part (also
known as a drop) of the object to “lead” into the main part of the cut so that the destructive force of the arc is
not directed into the desirable side of the cut itself. Also, all plasma cutters exhibit some angularity or bevel in
the cut which is greater on one side than the other. Keep this in mind when cutting an object to size so that too
much metal is not accidentally removed.
