
A 12 Order No. BA 93-20-270 Issue 01.03.08
35
5.7.3 Arc
Blow Effect
A so called arc blow effect can occur with unproportionally distributed ground connec-
tions in relation to the base material mass, varying material distribution, or welding at
the edge of a workpiece. This is an undesired deflection of the arc. It causes a single-
sided melting of the stud material, increased pore formation, and undercuts in the
welding area.
The arc blow effect is proportional to the current and can be influenced by symmetric
installation of the ground clamps, by fitting of compensation masses, or by rotating the
welding gun around its vertical axis (applies for welding guns with external welding
cable).
Arc blow effects and some corrective actions
(according to standards, see appendix)
Cause
Corrective action
Содержание 93-20-270
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Страница 49: ...A 12 Order No BA 93 20 270 Issue 01 03 08 49 Ceramic tripod complete A 12 93 40 022 ...
Страница 61: ...A 12 Order No BA 93 20 270 Issue 01 03 08 61 Service Support ...
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