OPERATION
18
electrode
workpiece
electrode
electrode
workpiece
workpiece
Scrape the workpiece for
strinking arc
Electrode touch
workpiece
Lift up for about 2-4mm
scrape
up
touch
2
~
4mm
§4.3.3 Manipulation of electrode
In MMA welding, there are three
motions to being matched in the end
of electrode: the electrode moving to
the molten pool along axes; the
electrode swing right and left; the
electrode moving along welding way.
The operator can choose the
manipulation of electrode based on
welding joint sharp, welding position,
electrode spec, welding current and
operation skill, etc.
The details please refer to
《
Welding Dictionary
》
P69, Volume 1 of Edition 2.
§4.4 Welding Parameters
§4.4.1 Joint forms in TIG/MMA
§4.4.2 The explanation of welding quality
The relation of welding area color & protect effect of stainless steel
Welding area
color
argent , golden
blue
red-grey
grey
black
a
butt joint
b
lap joint
c
coner joint
d T
joint
electrode
workpiece
weld
1
2
3
2
1-electrode moving; 2-the electrode swing right & left; 3-the electrode move along weld
