Butt Joints; Lap Joint; Tee Joint - Miller Maxstar 140 Owner's Manual

6-10. Butt Joints

1

6-11. Lap Joint

2
Single-Layer Fillet Weld

6-12. Tee Joint

OM-2224 Page 26
°
30
1/16 in
(1.6 mm)
3
°
30
Or Less
1
3
Multi-Layer Fillet Weld
1
°
45
Or
2
Less
2
4
°
30
Or Less
1
2
1
3
1 Tack Welds
Prevent edges of joint from draw-
ing together ahead of electrode by
tack welding the materials in posi-
tion before final weld.
2 Square Groove Weld
Good for materials up to 3/16 in (5
mm) thick.
3 Single V-Groove Weld
Good for materials 3/16 – 3/8 in
(5-9 mm) thick. Cut bevel with oxy-
acetylene or plasma cutting equip-
ment. Remove scale from material
after cutting. A grinder can also be
used to prepare bevels.
Create 30 degree angle of bevel on
materials in V-groove welding.
4 Double V-Groove Weld
Good for materials thicker than 3/8
in (9 mm).
S-0662
1 Electrode
2 Single-Layer Fillet Weld
Move electrode in circular motion.
3 Multi-Layer Fillet Weld
Weld a second layer when a heavi-
er fillet is needed. Remove slag be-
fore making another weld pass.
Weld both sides of joint for maxi-
mum strength.
S-0063 / S-0064
1 Electrode
2 Fillet Weld
Keep arc short and move at defi-
nite rate of speed. Hold electrode
as shown to provide fusion into the
corner. Square edge of the weld
surface.
For maximum strength weld both
sides of upright section.
3 Multi-Layer Deposits
Weld a second layer when a heavi-
er fillet is needed. Use any of the
weaving patterns shown in Section
6-9. Remove slag before making
another weld pass.
S-0060 / S-0058-A / S-0061