Sweiss SKYARC ULTRA 3140, Руководство оператора

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OPERATION CONTROL AND CONNECTORS
14
§4.3.2 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 shape, 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 form in MMA
In MMA welding, the common basic joint form: butt joint, lap joint, corner joint
& T joint.
§4.4.2 Electrode selection
The electrode diameter selection is based on the workpiece thickness, welding
position, joint form, welding layer, etc. Please refer to the following table.
The welding current reference for different electrode diameter
Electrode
diameter/mm
1.6 2.0 2.5 3.2
Welding current/A 25
～
40 40
～
60 50
～
80 100
～
130
The relation between the welding current(I)’ factor(K) & electrode diameter(d) (I
＝
K×d: Carbon electrode)
Electrode
diameter/mm
1.6 2
～
2.5 3.2
butt joint
lap joint corner joint
T joint
electrode
workpiece
weld
1
2
3
2
1-electrode moving; 2-the electrode swing right & left; 3-the electrode move along weld