Swagelok 8HPH Series, User Manual

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Series 8HPH Weld Head User’s Manual 15
Fixturing the Work Pieces
It is very important that the work pieces are aligned so that the
electrode is in the seam of the joint, and that the ends are butted
squarely. If the work pieces are out of alignment, you may experience
angular or axial misalignment weld defects. See Figure 19 and
Figure 20.
Visual Alignment
To secure a work piece into the fixture, the user actuates
the right movable clamp with the left handle. The left movable clamp is
actuated in a similar fashion. See Figure 21. This method of operation
allows the user to operate the fixture with one hand while holding and
aligning the work piece with the other.
1. Insert the first work piece into either side of the fixture and visually
align the end of the work piece with the electrode tip.
2. Clamp the work piece by placing the handle in the not locked/
closed position.
3. Insert the other work piece and butt it up to the clamped work
piece. Clamp the second work piece.
4. Place both handles in the locked/closed position.
Figure 19 Angular Misalignment
Figure 21 Aligning the Electrode with the
Tube End and Clamping the
First Work Piece
Figure 20 Axial Misalignment
Left Handle
Right Handle
Electrode
Tube
Movable Side Plate
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