I grind down the welds almost flush and then planish with hammer, then it sometimes cracks. Not swinging the hammer as a blacksmith
![Wink ;)](./images/smilies/icon_e_wink.gif)
Any ideas where it goes wrong?
It happens occasionally and I havent figured out why.
AndersK wrote:Hi brother, strange seing a "Finn" with an ESAB logo![]()
Should be like swearing in the church in the land of Kemppi![]()
-Did you clean the metal before welding?
Yes, light sanding and wiped with acetone.
-Any gas leaks possible in your TIG?
Possible but not an obvious problem since welds were clean.
Even had good results on corners where gas coverage was poor.
Some welds had poor penetration but I fused backside before hammering.
This was a while ago and with my older TIG (Gysmi) which was little difficult to weld alu with, aggressive start and no external amperage control. Got to think about it today while reading an other post about 4043 problem.
Need to get back to it trying my newer machine, but I suspect its more about whos holding the torch
It's shame that nowadays everything must be done as quick as possible. Sometimes it feels like quality doesn't mean anythingAndersK wrote:Yeah, foolish but today everything is only about how to wrinkle as much cash as possible out of your operations in short time.
Volvo cars, well not my choice, and they are chinese now.
Finns better in hockey, seriously![]()
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Welcome here brotherVedma24 wrote:Hi Anders. After what i heard, the 1050 Alu, that we have here in Sweden, you should use 1100 rod, cause the 4043 and 5356 make weld to hard, to work on, and will crack. I bought all 3 types of rods, and in different dia, have not tryed them all out yet, since im prepairing my shop. I bought my rods in a store in Uppsala, by weight, since a hole package of each would have been too much and expensive. According to my catalogs from the Metalstores here in Uppsala, 3003 is also availible, but it's not in stock. Very important also to clean welding area, with ex an stainless steel brush, only used for Alu, to break the oxide. Not a pro, haven't weld Alu a lot, But i weld under licence in the early 80's so some knowledge i have..//Tomas..
Ok, I'll give you that oneMarkus wrote:Globen nittiofem
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