Preparing The Work Piece - Westfalia HW 80 Bedienungsanleitung

Preparing the Work Piece

Clean the work piece most carefully. Remove solvents containing halogen
or residues of degreasing solvents that produces harmful vapours.
Remove chlorinated solvents that produce gases.
When welding metals that contain or are coated with lead, graphite,
cadmium, zinc, chrome, mercury or beryllium always wear appropriate
breathing protection.
There are two basic types of welded joints:
- Joints between parts on the same flush level and
- Angle Joints
According to the relevant thickness (B)
the distance (A) of the joint edges
should be:
On flat lying work pieces
Size 2 – 3 mm/distance 1 – 1.5 mm
Size 3 – 4 mm/distance 1.5 – 2.5 mm
Size 4 – 5 mm/distance 2 – 3 mm
On vertically placed work pieces
Size 2 – 3 mm/distance 1 – 1.5 mm
Size 3 – 4 mm/distance 1.5 – 2 mm
Size 4 – 5 mm/distance 2 – 2.5 mm
On head-on placed work pieces
Size 2 – 3 mm/distance 1 – 1.5 mm
Size 3 – 4 mm/distance 1.5 – 2.5 mm
Size 4 – 5 mm/distance 2 – 3 mm
Preparing the Work Piece
B
18
A