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3rd September 2015, 10:22 PM #16Taking a break
- Join Date
- Aug 2008
- Location
- Melbourne
- Age
- 34
- Posts
- 6,127
I'm no metalworker, but everything I've read says you need to preheat the casting to over 600 degrees before welding and let it cool SLOOOOWWWWWLY
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3rd September 2015 10:22 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
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- Advertising world
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- 2010
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4th September 2015, 01:27 AM #17SENIOR MEMBER
- Join Date
- Nov 2011
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- Newcastle NSW
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- 775
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4th September 2015, 08:10 AM #18
There was one of these at the Uni but my predecessor flogged it to Gabbit for $50.
I think it may have had an x y table like a mill.
H.Jimcracks for the rich and/or wealthy. (aka GKB '88)
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4th September 2015, 08:47 AM #19
An inverter ARC welder Graham, nice flow, easy to use hardly any splatter.
The welding rods I use were a "Pro Weld Ni 99" this is a graphite coated electrode with a pure nickel core wire.
The pack says...
"Ni 99 is suitable for use on AC/DC and has an exceptional smooth running arc.
It is a fully machinable deposit and ideal for welding grey cast irons, malleable irons, austenitic cast irons and some grades of machinate cast irons."
Hope this helps.
Spot on Elan, I'm not sure the exact temperature I had the cast but it was hot, I was glad the 2.5 rods ran out quick because standing over the piece was unbearable.
I'll give you a ahoy when it all has some colour on it, as the machine is just over the road from you.
Melbourne Matty.
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4th September 2015, 09:03 AM #20
I can never find a barker machine like that Cam !!
Thanks for the encouragement Mate, you'll have to come down soon for a visit !!
P.S.. Love the water mark ...lol
He should of been flogged himself for that behavior Henry, $50, gee wiz ?!?!
This one I am fixing up does have the X & Y table like a mill, I'm hoping the fire has not done too much damage and it is still accurate once its all back together.
Melbourne Matty.
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4th September 2015, 09:22 AM #21Senior Member
- Join Date
- Nov 2012
- Location
- Sydney
- Posts
- 266
Matty
An ambitious repair carried out very well !! Bravo.
Did you end up with much distortion? I really like that you clamped to the blue SHS.
John
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4th September 2015, 11:59 AM #22GOLD MEMBER
- Join Date
- May 2013
- Location
- Rockhampton QLD
- Age
- 68
- Posts
- 2,347
Lovely job Matty. Looking forward to seeing it finished.
Ross
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4th September 2015, 01:49 PM #23
Thanks John, admittedly there were some tiny cracks in the middle, no longer that a 50c piece.
I didn't worry about running over them, I'm happy the way it is.
The top ended up being perfectly flat, it was slightly curved at one stage, but finishing the welds on the underside brought it back to straight.
Thanks Ross, me too !
The frame and parts are all taped up ready for Powder coating, a little filling on the frame just to smooth it all out with a high grade marine filler.
Then sanded back smooth, the finish will not be perfectly flat but none of these old cast machines were.
Melbourne Matty.
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4th September 2015, 01:58 PM #24
I should have a chat about welding a cast fence to an old buzzer i have. Two inches broke off the end.
Like they said .... impressive
Dave TTC
Turning Wood Into Art
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4th September 2015, 02:38 PM #25
Isn't this metal work shouldn't it be in the new metalwork forum???
Nice to see the wip
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6th September 2015, 04:50 PM #26
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6th September 2015, 04:51 PM #27
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6th September 2015, 07:24 PM #28Taking a break
- Join Date
- Aug 2008
- Location
- Melbourne
- Age
- 34
- Posts
- 6,127
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6th September 2015, 09:07 PM #29Neil____________________________________________Every day presents an opportunity to learn something new
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7th September 2015, 09:20 PM #30
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