HI Speed Tool Steel To Mild Steel..

[zapster]

Had to make a plunge tool for the face of a big 'ol piece of steel in the lathe..
Here is the pieces..

15033

Simple enough..
Grind before welding then clamp and weld..
(Yeah I fixed the vice)
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Top of the bit..
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Little stitch on the bottom..
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The hook for digging on the end..
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More on why next..

...zap!

[zapster]

Gotta turn out major metal in this just for lightening only..

Leave a 2.5 Dia center and then drill and tap 1-8" 2" deep after..
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Gouging near the center hub..
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Looking for a groove like this..
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For a regular carbide insert tool to do it's damage..
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Turn to the outside edge while taking off 1/4" at a time..
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Next!..

...zap!

[zapster]

Even with a small gouge tool...
If you try to take too much off at one time?
This happens.....X3:realmad:
15043

Did'nt break off at the thin part..
Broke at the body..

Go figure..


Oh yeah..
120 amps give or take..
3/32" Red.
.045 70S-2

I get all the repetitave jobs..

...zap!

[Brainfarth]

What did you use as filler? Do you ever have problems with it cracking out on the HAZ when using er-70s?

[zapster]

What did you use as filler? Do you ever have problems with it cracking out on the HAZ when using er-70s?


.045 70S-2 and No..
Not yet anyway..

Let air cool..NO WATER!!!

...zap!

[tanglediver]

So you're saying the plunge tool was the HS tool steel, and the big ole piece is mild steel? http://i176.photobucket.com/albums/w191/tanglediver/confused-smiley-0081.gif

[zapster]

So you're saying the plunge tool was the HS tool steel, and the big ole piece is mild steel? http://i176.photobucket.com/albums/w191/tanglediver/confused-smiley-0081.gif



Yup..

...zap!

[Scrapmetal]

Your beads look really nice. I probably should have made my screen name booger welds. On the stitch do you use short "U" type movements to get it to look like that?

[zapster]

On the stitch do you use short "U" type movements to get it to look like that?



Not really..
Its just back and fourth over a root pass while adding filler on the edges..

...zap!

[welderman1]

Did you pre-heat the high speed? It probably busted because welding made it brittle. Unless you pre and post heat. I would have silver soldered it. Most if not all cutters are silver soldered.