Author Topic: Welding Chainsaw Parts  (Read 4388 times)

0 Members and 0 Guests are viewing this topic.

Offline tommyhnavix

  • 3 cube
  • *
  • Posts: 14
  • Karma: 1
Welding Chainsaw Parts
« on: February 09, 2012, 08:13:31 pm »
Anyone have information about welding chainsaw parts?

Aluminum, Mageneseum, or alloy of both??

Wonder if this stuff would work?

http://www.aluminumrepair.com/

What have you used or tried?


Social Buttons


Offline Al Smith

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2564
  • Karma: 130
Re: Welding Chainsaw Parts
« Reply #1 on: April 08, 2012, 10:00:08 am »
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 . ;)

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 17952
  • Karma: 338
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Welding Chainsaw Parts
« Reply #2 on: April 08, 2012, 10:10:27 am »
 
Anyone have information about welding chainsaw parts?

Aluminum, Mageneseum, or alloy of both??

Wonder if this stuff would work?

http://www.aluminumrepair.com/

What have you used or tried?

Another thread with some info  http://chainsawrepair.createaforum.com/ported-saws/welding-cylinders-to-fix-them/
REDNECK Saw Repair Getter Done

Offline Cut4fun

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 3708
  • Karma: 133
  • OHIO REDNECK
Re: Welding Chainsaw Parts
« Reply #3 on: September 26, 2012, 01:28:12 pm »
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) ;)

REDNECK Saw Repair

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 4001
  • Karma: 220
  • Location: Carpenter, Wyoming
Re: Welding Chainsaw Parts
« Reply #4 on: October 13, 2012, 02:17:41 am »
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.

 

   
PP 505, 475, 445.

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 4001
  • Karma: 220
  • Location: Carpenter, Wyoming
Re: Welding Chainsaw Parts
« Reply #5 on: October 13, 2012, 02:22:22 am »
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.


PP 505, 475, 445.

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 4001
  • Karma: 220
  • Location: Carpenter, Wyoming
Re: Welding Chainsaw Parts
« Reply #6 on: October 13, 2012, 02:43:53 am »
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.
PP 505, 475, 445.

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 17952
  • Karma: 338
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Welding Chainsaw Parts
« Reply #7 on: October 13, 2012, 07:38:41 am »
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 **** 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
REDNECK Saw Repair Getter Done

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 4001
  • Karma: 220
  • Location: Carpenter, Wyoming
Re: Welding Chainsaw Parts
« Reply #8 on: October 13, 2012, 10:51:36 am »
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.
PP 505, 475, 445.

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 17952
  • Karma: 338
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Welding Chainsaw Parts
« Reply #9 on: October 17, 2012, 08:32:28 pm »
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?
REDNECK Saw Repair Getter Done

 

Related Topics

  Subject / Started by Replies Last post
3 Replies
581 Views
Last post June 07, 2012, 02:47:11 pm
by Dh1984
2 Replies
345 Views
Last post February 08, 2013, 10:51:18 pm
by mattinky
0 Replies
100 Views
Last post December 02, 2013, 10:34:35 am
by Forester Parts
16 Replies
547 Views
Last post June 01, 2014, 11:58:22 pm
by 3000 FPS
1 Replies
540 Views
Last post July 07, 2015, 09:03:45 pm
by Cut4fun .
3 Replies
99 Views
Last post November 05, 2015, 12:02:37 pm
by Cut4fun .
8 Replies
96 Views
Last post April 29, 2016, 11:47:09 am
by chy_farm
0 Replies
51 Views
Last post December 05, 2015, 10:17:42 am
by Cut4fun .
1 Replies
51 Views
Last post April 06, 2016, 04:17:50 pm
by aclarke
4 Replies
258 Views
Last post April 04, 2017, 08:28:52 pm
by Cut4fun .