Re: [CAD_CAM_EDM_DRO] Cast metal question

Have you considered TIG welding? If plain TIG doesn't work, high frequency
TIG should.

Smoke

>Hello:
>
>I am working on an old machine that has two pieces broken off by a
>forklift in preparation to ship it.
>
>I assumed both were cast iron only to discover neither is
>magnetic...they are dark grey granular/crystalline-looking where break
>happens, no bending, just fracture.
>
>I'm told it can't be welded...someone suggested JB Weld (epoxy I
>assume), but I think the fracture will still be stressed with only a
>thin layer holding it. I want to glue (very thin epoxy or cyanoacrylate
>(because it's so thin, crystalline metal surfaces can still interlock -
>nto sure epoxy will allow that) it and then drill it to insert roll pins
>thru/across the fracture.
>
>Any suggestions?
>
>The second piece has me puzzled - it's a 'T' shape, inverted. The 'top '
>of the 'T' is actually the base, with two bolts holding it to the base
>of the machine. A counter mounted on this inverted T. The 'stem' of the
>tee was broken off.
>
>After removing the bolts, I still can't remove the remaining base
>(inverted 'top' of T"...block of wood and sledge hammer won't budge it,
>can't see a bolt underneath...I can't figure why they put two 1/4-20
>bolts thru it if it's so darn intimate with the base!
>
>Murray
>
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