Checklist: troubleshooting welding seam
Find the cause when the seam is not good
§What do you see?
- 01Are there pores on or in the seam?
- 02Is there burning along the edges?
- 03Is there missing penetration in the root?
- 04Is slag caught in the seam?
§Check preparation
- 01Were the joint surfaces clean of rust, paint, fat and moisture?
- 02Was the joint preparation and root gap correct?
- 03Was the workpiece protected against draughts that could blow away the shielding gas?
§Check setting and technique
- 01Were current and possibly wire speed appropriate for the material and material thickness?
- 02Were the shielding gas and polarity correct for the method?
- 03Were speed, angle and distance stable?
- 04Was slag removed between the strands where necessary?