2
WIRE ELECTRODE EXTENSION
Wire extension or ”stick-out”
is the distance between the last point of electrical contact, usually the end
of the contact
tip, and the end of the wire electrode. Figure 7-2 schematically shows wire extension.
It is in this area
that PR preheating effect occurs. Figure
7- 1 – Burn-Off Characteristics Figure
7-2 - Tip-To-Work Distance Continued
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