Series Arc | Research & Development

“History doesn’t repeat itself but it often rhymes,”
–Mark Twain

Our Additive Manufacturing (AM) posts on high deposition welding processes have generated a lot of interest. I was even invited to submit a paper for consideration at Solid Freeform Fabrication Symposium. With electroslag strip, we build parts up to 2 1/2″ wide and 3/16″ thick in a single pass. With submerged arc, we deposit 30 pounds per hour or more!

These are the old welding processes that us old guys have used for years.

In today’s video Dave Hebble demonstrates a twin wire variation of submerged arc welding (SAW). Series arc has a number of unique and useful characteristics. First is you don’t need to ground the part, something we find useful when the AM built part is manipulated in a 2 axis positioner. As well as remarkably high deposition rates and wide flat weld beads. But I will let Dave explain it all in the video.


When I started my career in the late ’70s I was fortunate to have Dave Hebble as a mentor. Dave is the best welding process engineer I’ve ever met. 10 years ago he joined us at ARC Specialties. When people ask what I have Dave working on I respond that: “It is not right for the student to tell the teacher what to do”.