Menu
Forums
New posts
Search forums
Calendar
Monthly
Weekly
Agenda
Archive
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Help Support Hardline Crawlers :
Forums
Rock Crawling Forums
Tech & Fab
Can you weld cast aluminum??
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="mac5005" data-source="post: 469171" data-attributes="member: 4650"><p>Clean it well and take a torch and preheat it. Not only will it make it easier to weld but it will burn some of the oil out of the surface as well. </p><p></p><p>After that I always run a few passes over the area, low amperage, with the balance cranked for max cleaning. I do this until the deodorized area all looks white and no black spots. </p><p></p><p>This again will preheat the area some and make sure the area to be welded is clean.</p><p></p><p>I definitely prefer 5356 for castings over 4043 but either can be used if that's all you have. </p><p></p><p>I've had good luck performing repairs on cast alum this way. </p><p>Cleanliness is everything. </p><p>Also depending on your machine size is how much you want to preheat. The smaller machine the more preheat you want. </p><p></p><p>If it's a large hole, put a piece of copper on the backside to help with filling it.</p></blockquote><p></p>
[QUOTE="mac5005, post: 469171, member: 4650"] Clean it well and take a torch and preheat it. Not only will it make it easier to weld but it will burn some of the oil out of the surface as well. After that I always run a few passes over the area, low amperage, with the balance cranked for max cleaning. I do this until the deodorized area all looks white and no black spots. This again will preheat the area some and make sure the area to be welded is clean. I definitely prefer 5356 for castings over 4043 but either can be used if that's all you have. I've had good luck performing repairs on cast alum this way. Cleanliness is everything. Also depending on your machine size is how much you want to preheat. The smaller machine the more preheat you want. If it's a large hole, put a piece of copper on the backside to help with filling it. [/QUOTE]
Insert quotes…
Verification
Post reply
Latest posts
Golden Mountain Off-road Park opening
Latest: ridered3
Yesterday at 9:02 PM
General Discussion
I am moving to Tennessee
Latest: hokie_yj
Yesterday at 7:45 AM
General Discussion
For Sale
2005 Ford Excursion Eddie Bauer
Latest: jeeptj99
Monday at 11:55 AM
Vehicles For Sale
I.w.i.w clampy
Latest: bobbedrunner99
Apr 26, 2024
Tech & Fab
Salvage 10
Latest: ridered3
Apr 26, 2024
Tech & Fab
Forums
Rock Crawling Forums
Tech & Fab
Can you weld cast aluminum??
Top