Welding Aluminium Heads. This was welded and dug out 3 times before it cleaned up completely. The first step in welding aluminum is preparing the crack.
For welding aluminum goes for a machine that is equipped with a pulse mode. This welding technique is often used by automotive enthusiasts and welders. Some Cylinder head repair shops use matching filler metal when they know what they are welding but an awful lot of shop just use whatever works.
However understand that welding cast aluminum might not be the easiest of tasks in most cases and it could be as a result of impurities.
This welding technique is often used by automotive enthusiasts and welders. Aluminum heads are usually cast using 355 356 a356 or 357 aluminum. One is the filler. When welding a cracked aluminum casting it is very important to determine the full extent of the damage so the crack can be completely ground out.