[TheForge] Power Hammer Dies... revisited

Fri Mar 14 10:23:00 2003

dan tull
georgia
abba, afc, S.C. psba, obg,sofa
----- Original Message -----
From: "RW" <[email protected]>
To: <[email protected]>
Sent: Friday, March 14, 2003 10:11 AM
Subject: [TheForge] Power Hammer Dies... revisited

> The new dies will be welded to a mild steel plate which will be bolted to
> the anvil face.  My welder is AC only.  Do I need a DC welder to get a
> reliable weld?

No. Several rods work.
.
>
> I can buy annealed H13 blanks from my local steel supplier for $110.
> Cutting the square hole is about $100.  Heat treat is $95.  Would welding
> the annealed H13 to the plate and then heat treating, normalize the
welding
> stresses?

Could you weld the hardy on the anvil , and not the die?
Remember , H13 is air hardening... tough to normalize.

> Would anyone prefer 4140 or 4340 over H13?  Why?  How would you handle
these
> in the above scenario...professional heat treat?
>

4140 for the above reason.
I wouldn't heat treat hot worktools.

> Thanks in advance.  RW Swisher
>
>
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