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#Post#: 41779--------------------------------------------------
Re: Welding Chainsaw Parts
By: aclarke Date: June 23, 2014, 5:34 pm
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Repairs look great. What are you using for filler on the mag?
Case (side cover) repairs?
#Post#: 41784--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: June 23, 2014, 10:25 pm
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[quote author=srcarr52 link=topic=737.msg41778#msg41778
date=1403560500]
[quote author=3000 FPS link=topic=737.msg41774#msg41774
date=1403556724]
I am glad you showed that. I do not believe I have ever seen
anyone weld a plug hole before and cut in new threads.
Not to mention what could be an expensive cylinder.
Nice job.
[/quote]
I did the job so save a friends profit margin. I think I'll get
the porting done on it tonight/tomorrow. It should be a good
runner... I doubt he'll sell it after I get done with it.
I have a 2100 cylinder to do the same thing on when I get time.
Next time I'll switch to a smaller torch (not the giant 300 amp
18) so I can get my first past a little cleaner. I had to reach
down into the cylinder with a long collet cup and blend in the
camber side basically by braille as I could not see anything.
[/quote]
So your saying that you welded that from both sides. That is
impressive.
#Post#: 41785--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: June 23, 2014, 10:27 pm
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[quote author=aclarke link=topic=737.msg41779#msg41779
date=1403562894]
Repairs look great. What are you using for filler on the mag?
Case (side cover) repairs?
[/quote]
The rod is AZ92A.
#Post#: 41788--------------------------------------------------
Re: Welding Chainsaw Parts
By: aclarke Date: June 23, 2014, 11:12 pm
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Thks. I've always used 91a, any meaningful difference between
the two? Adam
#Post#: 41789--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: June 23, 2014, 11:31 pm
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[quote author=aclarke link=topic=737.msg41788#msg41788
date=1403583153]
Thks. I've always used 91a, any meaningful difference between
the two? Adam
[/quote]
I do not know since I have always used 92A and it always seemed
to be a good match.
#Post#: 41790--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: June 23, 2014, 11:40 pm
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I was just looking at the spec sheets on the two rods and it
looks like there is a difference in the composition between the
two.
The AZ92A would be considered more of a general purpose filler
rod for magnesium.
I know that SRCARR52 is pretty knowledgable in this area also.
#Post#: 41796--------------------------------------------------
Re: Welding Chainsaw Parts
By: aclarke Date: June 24, 2014, 8:26 am
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Ok thanks. What type of Tig do you use?
#Post#: 41799--------------------------------------------------
Re: Welding Chainsaw Parts
By: srcarr52 Date: June 24, 2014, 9:23 am
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[quote author=3000 FPS link=topic=737.msg41784#msg41784
date=1403580345]
So your saying that you welded that from both sides. That is
impressive.
[/quote]
Yes, I had to to get a good finishing inside the chamber.
Luckily I had a bunch of long gas cups from welding cylinder
heads back in the day.
[quote author=3000 FPS link=topic=737.msg41790#msg41790
date=1403584806]
I was just looking at the spec sheets on the two rods and it
looks like there is a difference in the composition between the
two.
The AZ92A would be considered more of a general purpose filler
rod for magnesium.
I know that SRCARR52 is pretty knowledgable in this area also.
[/quote]
I use AZ92A. I think, but don't quote me, AZ91A is more for
sheet/billet mag where AZ92A is supposed to be better for cast
and die cast like we are always welding.
[quote author=aclarke link=topic=737.msg41796#msg41796
date=1403616363]
Ok thanks. What type of Tig do you use?
[/quote]
I have a Lincoln Ideal Arc 300. It's old, sine wave, no cool
features except high frequency start so I don't have to scratch
start. It does have a water cooled torch which is awesome. A
newer square wave with AC balance would work much better but
this works for now.
#Post#: 41802--------------------------------------------------
Re: Welding Chainsaw Parts
By: aclarke Date: June 24, 2014, 2:00 pm
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Good deal! I have the same 300 Lincoln I use mainly for steel,
great old machine! Really nice arc down low for thin material.
Miller Aerowave I use for alum/mag. I'll try some of the AZ92
#Post#: 41808--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: June 24, 2014, 7:03 pm
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What I have is a miller synchrowave. It does not have square
wave either but it does have high frequency.
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