PRO-POINT 9085986 Mode D'emploi page 24

9085986
AVERAGE MATERIAL
THICKNESS
1/32 to 1/16 in.
1/16 to 3/16 in.
3/16 to 5/16 in.
5/16 in. or greater
ELECTRODE DIAMETER
1.0 mm 1/32 in.
1.6 mm 1/16 in.
2.0 mm 3/32 in.
2.5 mm 3/32 in.
3.2 mm 1/8 in.
4.0 mm 5/32 in.
ARC LENGTH
To strike the arc, the electrode should be gently scraped on the work until the
arc is established. There is a simple rule for the proper arc length; it should be
the shortest arc that gives a good surface to the weld. An arc that is too long
reduces weld penetration, produces spatter and creates a rough surface finish.
An excessively short arc will cause sticking of the electrode and result in poor
quality welds. General rule of thumb for down hand welding is to have an arc
length no greater than the diameter of the core wire.
ELECTRODE ANGLE
The angle that the electrode makes with the work is important to ensure a
smooth, even transfer of metal. When welding in down hand, fillet, horizontal
or overhead the angle of the electrode is generally between 5 and 15 degrees
towards the direction of travel. When vertical up welding the angle of the
electrode should be between 80 and 90 degrees to the workpiece.
TRAVEL SPEED
The electrode should be moved along in the direction of the joint being
welded at a speed that will give the size of run required. At the same time,
the electrode is fed downwards to keep the correct arc length at all times.
Excessive travel speeds lead to poor fusion, lack of penetration etc., while too
slow a rate of travel will frequently lead to arc instability, slag inclusions and
poor mechanical properties.
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AC/DC Inverter TIG/Arc Welder
MAXIMUM RECOMMENDED
ELECTRODE DIAMETER
3/32 in.
1/8 in.
5/32 in.
3/16 in.
RECOMMENDED CURRENT
20 ~ 60A
44 ~ 84A
60 ~ 100A
80 ~ 120A
108 ~ 148A
140 ~ 180A
CURRENT RANGE
60 to 100A
100 to 130A
130 to 165A
165 to 260A
RECOMMENDED VOLTAGE
20.8 ~ 22.4V
21.76 ~ 23.46V
22.4 ~ 24V
23.2 ~ 24.8V
24.32 ~ 24.92V
24.6 ~ 27.2V
For technical questions call 1-800-665-8685
V1.0
Table 2
Table 3