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#Post#: 7421--------------------------------------------------
Welding Chainsaw Parts
By: tommyhnavix Date: February 9, 2012, 7:13 pm
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Anyone have information about welding chainsaw parts?
Aluminum, Mageneseum, or alloy of both??
Wonder if this stuff would work?
(HTM) http://www.aluminumrepair.com/
What have you used or tried?
#Post#: 8520--------------------------------------------------
Re: Welding Chainsaw Parts
By: Al Smith Date: April 8, 2012, 9:00 am
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It could be any number of alloy depending on the brand and age
.Stihl uses a type of die cast that has a certain amount of
magnesium in it .Older Homelites might be all magnesium
depending on the model .
I don't have a heli-arc rig so I really don't know but what few
I've had welded the welder just experimented with different
filler rods until they found the right one .
My buddy Ron owns a repair shop .Good machinest ,good welder
,lousey electrician . Works out well for both of us . ;)
#Post#: 8521--------------------------------------------------
Re: Welding Chainsaw Parts
By: Chainsawrepair Date: April 8, 2012, 9:10 am
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[quote author=tommyhnavix link=topic=737.msg7421#msg7421
date=1328836411]
Anyone have information about welding chainsaw parts?
Aluminum, Mageneseum, or alloy of both??
Wonder if this stuff would work?
(HTM) http://www.aluminumrepair.com/
What have you used or tried?
[/quote]
Another thread with some info
(HTM) http://chainsawrepair.createaforum.com/ported-saws/welding-cylinders-to-fix-them/
#Post#: 11801--------------------------------------------------
Re: Welding Chainsaw Parts
By: Cut4fun Date: September 26, 2012, 12:28 pm
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3000 FPS you are into this welding now with good results.
Anything you want to share?
3000 FPS sent me a note that he cant do pics etc for another 2
weeks with internet he is on right now for posting here. Thanks
for info. 8) ;)
#Post#: 12225--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: October 13, 2012, 1:17 am
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I have a Miller Tig welder and have been doing some magnesium
welding on chainsaw parts. I have welded various parts from
clutch covers to crankcases. I have welded I believe about 12
chainsaws as of this time with some pretty good results.
So here is what I am doing. First off I am not using any
kind of aluminium rod and it will not work at all. The rod I am
using is magnesium and is so close in composition that when the
welding and finish work is done you cannot see the difference in
the two metals. The magnesium rod I use is called AZ92A.
The tungston I am using in the torch is 2% ceriated 3/32 in
size. I like using this because it takes less amperage to get
the arch going. I use the 3/32 size because alot of chainsaw
parts are not very thick and it does not take much amperage to
weld. I have found that it takes much less amperage than
aluminium.
I usually set up the Miller tig welder just like I am going
to do aluminium but it uses less amperage which is controlled
either by foot on by a thumb control. I am also using 100%
argon gas.
I also have found that sand blasting the part first cleans
it pretty good and helped to eliminate contamination. Chainsaw
parts get soaked in oil and it is very hard to eliminate all of
the contamination. So if while I am welding and I run into a
bad section I will stop and clean the area again with a
stainless brush and then re-weld it again. I have done this up
to 3 times on some parts that I have welded on to get rid of the
contamination and to get a good weld. If it is a crack I am
welding together I will weld it from both sides.
Another thing I have found is the torch needs to be held
closer to the part to keep a good steady arch going. In some
cases if the part is thin and on an edge I will use a backing
material that will not stick to the magnesium. This will keep
the puddle from falling away.
So here are a few before and after pictures.
#Post#: 12226--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: October 13, 2012, 1:22 am
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Here is picture of a hole punched in the case from the chain
adjuster. I know that alot of you have seen this many times.
I also checked this with water to make sure it would no longer
leak. I had to weld this 3 times before I eliminated all the
leaks.
#Post#: 12227--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: October 13, 2012, 1:43 am
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One more set of pictures. This is a clutch cover from a J-red
670 that had a crack in it. I also included a picture of my
welder in case you wanted to know what I was using.
#Post#: 12231--------------------------------------------------
Re: Welding Chainsaw Parts
By: Chainsawrepair Date: October 13, 2012, 6:38 am
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I tell you if I would have thought about it and known before I
did all my redneck fixing in the past you would have got alot of
my stuff. I rednecked a 330 where bar adjuster punched through
oil tank, 3750 case where it was cut for bow bar, 475, 415
broken rear av mounts. 2 cracked 272 covers.
Maybe someday if the rednecking gives up the ghost.
Also Thank You for getting back and sharing your welding of
these parts with us. 8)
Kevin
#Post#: 12240--------------------------------------------------
Re: Welding Chainsaw Parts
By: 3000 FPS Date: October 13, 2012, 9:51 am
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I just picked up another 335 that has a crack in the side of it
where the bar studs come through and is now leaking oil. When
I get around to splitting the case and welding this up I will
post the before and after pictures of it. I like picking up
these saws because they are usually very cheap and require more
labor then parts to repair.
#Post#: 12366--------------------------------------------------
Re: Welding Chainsaw Parts
By: Chainsawrepair Date: October 17, 2012, 7:32 pm
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I have 2 inner dawgs on poulan 505 saws that are broke in the
thin area in the middle now. Seems like a weak area IMO.
Wondering if it is feasible to weld dawgs back together?
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