A656 Gr 80

By Justin Kline Date 03-10-2008 10:43

A656 Gr 80 5/8 thick using a GMAW process on a robot I need to put down a 5/16-3/8 fillet anyone have any recomendations on wire,gas,pre-heat required for a project of this nature? Thanks Justin

By ctacker (****)

Date 03-30-2008 04:05

I think you want to go with NS 102 wire,here is a link that can give you more info!
http://www.heicowiregroup.com/files/123080201NS102%20Technical%20Bulletin_10-07.pdf

As for preheat,I am looking for info myself, maybe someone has had experiance with this material and can let us know.

By cfrancis (**)

Date 04-08-2008 13:20

We weld this daily as one of our "main" materials. I prescribe the use of ER80S-D2 filler and 95/5 Ar/Co2 shield. Size wire should depend on fillet size and joint position.
For parameters, I prescribe a slightly "wet" arc as compared to a ER70S-6 wire because the puddle is slightly stiffer and a wetter arc will enhance the wettability.
With .045" 27-28 volts 350-400Ipms should put you in a good neighborhood

By Fredspoppy (**)

Date 04-08-2008 19:05

And by "wetter arc" you mean?

By cfrancis (**)

Date 04-08-2008 19:26

A "wetter arc" means in the world of slang terms,,,a "soft arc" or a in a spray mode, a little lighter on the wire feed rate. This allows the edges to wet easier.