- Joined
- Feb 2, 2013
- Messages
- 3,642
I got the task of welding an unknown grade of 400 series stainless steel used for making precision cutting edges for a brand of processing machine that i will leave nameless.
My machine is a Miller Idealarc 250P(AC-DC TIG & STICK Welder), with a Lincoln High Frequency Box with foot control, and Water Cooled Torch & Cooler. :biggrin:
Here's a picture of the Rig,
the material is 8mm thick.
i welded the project at 50 amps DCEN
the filler rod was 1/8" ER309L
the shielding gas is straight Argon @ about 14 CFH
i didn't preheat the material, but i did weld the piece on an aluminum slab.
my intention was to reduce the warpage, the aluminum being a make shift heat sink.
the method worked better than i anticipated.
i'll have to keep it in mind for the next time:thinking:
here's a picture of some of my warm up pieces made of the same material, the material on top was a broken blade, i followed the contours of the break responsible for producing the mountain range effect in the weld.
i was pleased after making a few operational adjustments.
the second picture came out a lot blurrier than i thought :angry:
if you have experience in welding 400 series, i'd like to hear your experiences!
anyone is encouraged to comment!
thanks for reading!
My machine is a Miller Idealarc 250P(AC-DC TIG & STICK Welder), with a Lincoln High Frequency Box with foot control, and Water Cooled Torch & Cooler. :biggrin:
Here's a picture of the Rig,
the material is 8mm thick.
i welded the project at 50 amps DCEN
the filler rod was 1/8" ER309L
the shielding gas is straight Argon @ about 14 CFH
i didn't preheat the material, but i did weld the piece on an aluminum slab.
my intention was to reduce the warpage, the aluminum being a make shift heat sink.
the method worked better than i anticipated.
i'll have to keep it in mind for the next time:thinking:
here's a picture of some of my warm up pieces made of the same material, the material on top was a broken blade, i followed the contours of the break responsible for producing the mountain range effect in the weld.
i was pleased after making a few operational adjustments.
the second picture came out a lot blurrier than i thought :angry:
if you have experience in welding 400 series, i'd like to hear your experiences!
anyone is encouraged to comment!
thanks for reading!
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