Try calling your local Lincoln Electric Technical Representative. They will most likely be happy to come to your site, tell you what your annual requirements for wire will be, assess the cost of materials and labor, recommend a particular build up wire and procedure and estimate a cost savings...
Is the pressing powdered metal or a forging? I am assuming it is powdered metal. If so, what is the chemistry? I work for Edison Welding Institute in Columbus, OH. We have significant experience with projection welding applications and have also had previous success in joining steel to...
Contact a Lincoln Electric Technical Representative. They manufacture the power sources, wire feeders, processes, wires and fluxes. They will be able to assess your application and possible prove out the feasibility of welding your particullar application on thier equipment even before you buy.
You will have a somewhat difficult time using SMAW on the thin walled tube (2mm). Regarding 7018 vs 6010: 7018 is a low hydrogen electrode which means it will pick up less moisture in the electrode which will result in a lower chance of hydrogen cracking after welding. Also, if you are...
1. Martensite in the HAZ. Several high strength steels are comprised of a partially martensitic microstructure. If this is the case there could most certainly be evidence of martensite in the HAZ. As far as it being acceptable, this really depends on your application and your own (or your...
By far the largest problem you will incur will be that you will not be able to get rid of the galvanized coating at the weld interface. When you projection weld you will need to keep watch on a few key things.
1. Make absolutely sure that you have very good followup. This means that when the...
I work with Edison Welding Institute in Columbus, OH. We have done significant work with flash butt welding. I tried to forward your post to one of my collegues but something went wrong with the e-mail process.
If you would like some more information you should e-mail Tim Stotler...
