20
The Horizontal Position
is performed very much the same way as the flat weld except that the
angle is different such way that the electrode, and therefore the arc force, is directed more toward the
metal above the weld joint. This more direct angle helps prevent the weld puddle from running
downwards while still allowing slow enough travel speed to achieve good penetration. A good starting
point for your electrode angle is about 30 degrees DOWN from being perpendicular to the workpiece.
2.5. Judging a good weld bead
When the trick of establishing and holding an arc has been learned, the next step is to learn how to
run a good bead. The first attempts in practice will probably fall short of acceptable results. Arc too
long will be held or the travel speed will vary from slow to fast. (Please observe the following picture).
A. Weld speed is too fast.
B. Weld speed is too slow.
C. Arc is too long.
D. Ideal weld.
A solid weld bead requires the electrode to be moved slowly and steadily along the weld seam. Moving
the electrode rapidly or erratically will prevent proper fusion or create a lumpy, uneven bead. To
prevent ELECTRIC SHOCK, do not perform any welding while standing, kneeling, or lying directly on
the grounded workpiece.
Содержание MIG 180-5
Страница 20: ...22 C Lift the welding torch to the normal position to initiate the arc and start welding ...
Страница 22: ...24 Spare parts listing ...
Страница 49: ...51 Κατάλογος ανταλλακτικών ...
Страница 74: ...76 Sklopni crtež rezervnih delova ...
Страница 99: ...101 Sklopni crtež rezervnih delova ...
Страница 127: ...129 Skica notranjosti naprave ...