Definition
In welding position, improper electrode alignment exists when either
of the two conditions is true:
- The contact surfaces of the upper and lower electrodes are not parallel;
- The centers of the contact of the upper and lower electrodes are
not coincident.
Description
There are two typical classes of electrode misalignment, axial misalignment
and angular misalignment, as shown in the figure. In the figure, Case
(1) represents good alignment, Case (2) represents another possibility
of good alignment. Case (3) is a typical axial misalignment. Case (4)
is a typical angular misalignment (with angularity  ).
Detection
Significance
Quality, Workplace Issues, Cost, Downtime, Maintenance, Throughput (cycle
time; PPH), are all potentially affected by this condition. Special
considerations are noted below:
Maintenance: due to the excessive wear of the electrodes,
more maintenance is required to dress or replace the electrodes.
Subordinate Causes
WeldHelp: To Issue/Cause
Matrix
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