Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum

Q on welding aluminum

Welcome Guest, Log in or Register
Author 
kev

08-13-2001 21:28:26




Report to Moderator

Im tring to weld some aluminum (a transmission case)with a mig welder
and im using argon gas and .35 aluminum wire. But the aluminum just builds up on the wire and won't melt into the work peace. Any help (to tell me any techniques I should use) would be appreciated..thanks




[Log in to Reply]   [No Email]
kelvin wynn

04-16-2002 15:00:54




Report to Moderator
 Re: Q on welding aluminum in reply to kev, 08-13-2001 21:28:26  
What is some of the advantages/disadvantages of welding aluminum when rivets, nuts and bolts can be used.



[Log in to Reply]  [No Email]
tony

08-15-2001 20:32:24




Report to Moderator
 Re: Q on welding aluminum in reply to kev, 08-13-2001 21:28:26  
another thing that might help would be to clamp your two pieces together tight, and then use a grinder on the joint to make a V. put your weld in the V and then grind it down flush with the pieces, this worked great for my cast aluminum pedal tractors



[Log in to Reply]  [No Email]
Steve U.S. Alloys

08-14-2001 06:55:14




Report to Moderator
 Re: Q on welding aluminum in reply to kev, 08-13-2001 21:28:26  
If this trans case is not automotive you could be dealing with magnesium. Al wire will not affinity to magnesium. Shave a small sample off the casing and put the torch to the shaving. If it is magnesium it will burn very brightly. Be carefull as the magnesium will burn until completely consumed. Don't let it get next to anything flammable.

If you do have Al, as Mark says, some types are considered difficult to weld and some are considered to be unweldable. I don't think any of those are used in the automotive industry but who can really be sure anymore? So much depends on the country of origin.

You may need to put a bit of preheat into the part before trying to weld it. Make sure the ground is adequate as well. Truthfully though, it sounds to me like you may not be dealing with Al at all.

[Log in to Reply]  [No Email]
Mark Kw

08-14-2001 06:01:13




Report to Moderator
 Re: Q on welding aluminum in reply to kev, 08-13-2001 21:28:26  
Reverse polarity, 16 to 21 volts, wire speed around 80 to 150 inches per minute. Clean Clean Clean. AL needs to be spotless in order to get any kind of weld to stick to it. If this don't work, best be ordering a new one because some AL castings just will not weld at all no matter what you do. If it's just a dust cover or similar with no stress on it, you can try some of the AL solders (see prior post about AL welding on this MB)

[Log in to Reply]  [No Email]
Mark Kw (additional)

08-14-2001 06:02:43




Report to Moderator
 Re: Re: Q on welding aluminum in reply to Mark Kw, 08-14-2001 06:01:13  
Pure argon gas running 40 to 60 cfh too. Not enough or too much gas will cause problems too.



[Log in to Reply]  [No Email]
Branden

08-15-2001 09:19:19




Report to Moderator
 Re: Re: Re: Q on welding aluminum in reply to Mark Kw (additional), 08-14-2001 06:02:43  
You need to clean it very, very, very clean AND..... ..you will also need to do a preheat as well. I have no idea what grade or series they are using for that automotive stuff. I think in all likely hood since it is cast aluminum, you may not be able to do it that great at all. Someone with aluminum cylinder head repair experience would be a good source of information. Call a machinist in your area, who does repairs on aluminum cylinder heads, he might be a wealth of good information.

Branden

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy