Welding Aluminum
Welding Aluminum
(OP)
Dear All,
We are making a conveyor belt structure of aluminum. Its the first aluminum job in our workshop and repeatedly its welding got cracked or piece got over heated. I studied on it and came out with following points:
1. use a heat sink to avoid over heating
2. remove the oxide layer from aluminum with help of SS brush or amri paper.
3. preheat the piece before welding
4. use 4043 wire (right now we using 4047)
Are these points ok? If not can you guide me please? We have not implemented these points yet.
We are making a conveyor belt structure of aluminum. Its the first aluminum job in our workshop and repeatedly its welding got cracked or piece got over heated. I studied on it and came out with following points:
1. use a heat sink to avoid over heating
2. remove the oxide layer from aluminum with help of SS brush or amri paper.
3. preheat the piece before welding
4. use 4043 wire (right now we using 4047)
Are these points ok? If not can you guide me please? We have not implemented these points yet.





RE: Welding Aluminum
B.E.
RE: Welding Aluminum
RE: Welding Aluminum
http://www.lincolnelectric.com/en-us/support/weldi...
RE: Welding Aluminum
RE: Welding Aluminum
You might want to consider ron-on and run-off tabs depending on your welding geometry.
Cleanliness is very important. As you said, thorough cleaning with SS wire brush and welding immediately after (not the next day).
RE: Welding Aluminum
RE: Welding Aluminum
http://www.maxal.com/files/QuickSiteImages/Maxal_G...
RE: Welding Aluminum
http://www.millerwelds.com/products/wire_feeders/p...
Spool guns are available in different sizes, and are sometimes easier to use
instead of GTAW for certain applications.
RE: Welding Aluminum