Entries tagged with “welder”.


I’m easily impressed with welding and welders. Welding looks so simple, yet hard, dangerous and permanent.

When interviewing your welder, here are some questions to ask:weld1

  • What type of welding are you doing?
  • What type of metal do you weld on? (mild steel, stainless, galvanized)
  • Is there any coating on the metal?
  • What type of flux is used?
  • Where do you weld?, and then, “Where else?”
  • Is there any ventilation in the area you weld?
  • Are there any flammables in the area?
  • Do you wear any PPE when welding? (ear plugs, respirator, leather)
  • When do you use fall protection?
  • Do you have & use welding shields?

What makes welding so difficult is the number of variables involved. The welding variables can change by the minute. Educate your employees on these dangers.

After the above questions, if the employee is agreeable, I ask some additional questions. These are the ones that provoke the best stories:

  • What is the strangest things you’ve welded?
  • Have you ever welding in a really small (confined) area?
  • Have you ever welded with exotic metals? fluxes?
  • What’s the worst thing you’ve welded on?
  • Have you ever gotten sick from welding?

There are many, many more questions to be asked depending on the answers. The authority on this subject, Michael Harris, has written an excellent book on this subject, “Welding Health and Safety“(ISBN 978-1-931504-28-7). It is available from AIHA. It is VERY detailed, and money well spent if you do welding. I have taken his short course (all day) and I learned more than I ever thought possible, and I still can’t even weld!

weld2

If you use heavy equipment and need to move dirt, rocks or soil, look closely at the buckets. Many times they will be coated with a material called hardfacing. It is a durable (consumable) welding bead laid out in a pattern. This pattern (from what I am told) helps to extend the life of the bucket. Apparently the cost of putting this product on the buckets is well below the cost of replacing the bucket (or teeth, or whatever).

The hazard is really on during the application of hardfacing. See my earlier post here. Hardfacing contains stainless steel (approximately 25%?, but it varies). Heating the stainless steel releases chromium in it’s hexavalent form (Cr6).

If your buckets have this on their exterior, your employees are probably exposed to hexavalent chromium at some point in the year.

However, the pattern is an art & science. Look closely at the side of this bucket…I think I know where this welder got his inspiration.