Welding Position:
Horizontal, Vertical, Over Head, H-V
What are the 4 welding positions
Welding Position:
1] Horizontal or Flat
Welding Position:
In the horizontal
welding position, the weld bead is on the upper side of the horizontal surface
and against a vertical surface by keeping an axis of weld in horizontal
position.
Horizontal-position
welding can be used on tee lap joints, butt joints, and tee joints.
2] Vertical Welding
Position:
This position is used only in forehand welding
technique.
To avoid the flow of molten
metal particle in a downward direction, the welding is always carried out from
the bottom to the top. In addition, if the forehand welding technique uses the
force of flame is acting as an additional force for holding of the molten metal
particle, therefore, only forehand welding technique is used in the vertical
welding position.
In this position
because the plates are vertical the molten metal particle
will try to fall down,
but by using the force of flame as an additional force it is obstructing the
molten metal particle out of the two technique, backhand welding technique will
give an effective method of application of additional force, hence the backhand
welding technique is used in the horizontal-vertical position.
4] Overhead Welding
Position:
In this position, the
basic mechanism by which the molten metal particles are
held in position is due
to surface tension. In addition, if the backhand welding technique is used it
gives additional force effectively for holding the molten metal particle,
therefore, the uniform weld bead is possible to produce.
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